Scholarly Activity

Selected Refereed Publications

1. "Probing the Energy Gaps of a Multi-Gap Superconductor: Ba(1-x)KxFe2As2”,  Keeran Ramanathan, Luke Conover, Oberon Wackwitz, and Roberto Ramos, Journal of Undergraduate Reports in Physics, Vol 30(1), 2021.

2. "The iPad as a Virtual Oscilloscope for Measuring Time Constants in RC and  RL Circuits", R. Ramos and C. Devers 2020 Phys. Educ. 55 023003 , https://doi.org/10.1088/1361-6552/ab606b

3. "Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions," S. Carabello, J. Lambert, J. Mlack, W. Dai, Q. Li, K. Chen, D. Cunnane, X. X. Xi, and R. C. Ramos, J. Appl. Phys. 120, 123904 (2016)

4. “Energy Gap Substructures in Conductance Measurements of MgB2-based Josephson Junctions: Beyond the 2-Gap Model” , S. Carabello, J. Lambert, J. Mlack, W. Dai, Q. Li, K. Chen, D. Cunnane, X. X. Xi, and R. C. Ramos, Supercond. Sci. Technol. 28 (2015) 055015.

5. “Fabry-Perot Interferences in Large Aspect Ratio Single-layer Graphene Junctions on SiO2/Si Substrates”, in preparation for submission 

6. “Multi-photon Transitions in a large MgB2-based Josephson junctions”, in preparation for submission

7. “Momentum-dependent multiple gaps of MgB2 probed by electron tunneling spectroscopy on MgB2/native oxide/Pb junctions”, K. Chen, W. Dai, C.G. Zhuang, Q. Li, S. Carabello, J. Lambert, J. Mlack, R. C. Ramos and X. X. Xi, Nat. Commun. 3 : 619 doi: 10.1038/ncomms1626 (2012).

8. “Differential Conductance Measurements of MgB2-based Josephson junctions below 1 Kelvin”, S. Carabello, J. Lambert, J. Mlack and R.C. Ramos, IEEE Trans. in Appl. Supercond. 21 (3), pp. 3083-3085. Selected for pre-publication in the European Superconductivity News Forum Issue 15, Jan. 2011. Reprint: http://www.ewh.ieee.org/tc/csc/europe/newsforum/pdf/2010-ASC/ST206.pdf

9.  “Analysis of Possible Quantum Metastable States in Ballistic Graphene-based Josephson junctions”, J. Lambert, S. C. Carabello, and R. C. Ramos,  IEEE Trans. in Appl. Supercond. 21 (3), pp. 734-737 (2011).  Reprint: http://arxiv.org/abs/0908.0713

10.  “Quantum Metastable States in Superconducting Graphene Josephson Junction Devices”, J. Lambert, S. Carabello, Z. Thrailkill, and R.C. Ramos, ISEC Conference Proceedings (2009).

11. “The Geometric Phase in the Josephson Phase Qubit”, A. Tyler and R.C. Ramos,  ISEC 2009 Conference Proceedings.

12. “Modeling Three- and Four- Coupled Phase Qubits”, Z. Thrailkill, S. Kennerly and R.C. Ramos,  IEEE Trans on Appl. Supercond 19(3), 968 (2009). Selected  for pre-publication in the European Superconducting News Forum.

13.  “Energies and Entanglement in Multiply-coupled Phase Qubit Systems”, Z. Thrailkill, S. Kennerly, A. Tyler and R.C. Ramos, J. Phys: Conf. Ser.150, 052268 (2009).  

14. “Decoherence in dc SQUID phase qubits,” H. Paik, S. K. Dutta, R. M. Lewis, T. A. Palomaki, B. K. Cooper, R. C. Ramos, H. Xu, A. J. Dragt, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, Phys. Rev. B 77, 214510-1 through 214510-6 (2008).

15. "Measurements of Decoherence in Three dc SQUID Phase Qubits", H. Paik, B. K. Cooper, S. K. Dutta, R. M. Lewis, R. C. Ramos, T. A. Palomaki, A. J. Przybysz, A. J. Dragt, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, IEEE Trans. Appl. Supercond. 17, 120-123 (2007).

16. “Initializing the flux state of multi-well inductively isolated Josephson junction qubits," T. A. Palomaki, S. K. Dutta, H. Paik, H. Xu, J. Matthews, R. M. Lewis, R. C. Ramos, K. Mitra, P. R. Johnson, F. W. Strauch, A. J. Dragt, C. J. Lobb, J. R. Anderson, and F. C. Wellstood, Phys. Rev. B 73, 014520 (2006)

17. “Spectroscopic Resonance Broadening in a Josephson Junction Qubit due to Current Noise”, H. Xu, A. J. Berkley, R. C. Ramos, M. A. Gubrud, P. R. Johnson, F. W. Strauch, A. J. Dragt, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, Phys. Rev. B Vol.71, 064512 (2005)

18. “Cooper-pair Box as a Variable Capacitor” H. Paik, F. W. Strauch, R. C. Ramos, A. J. Berkely, H. Xu, S. K. Dutta, P. R. Johnson, A. J. Dragt, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, IEEE Trans.  Appl. Supercond. vol. 15(2),  p. 884 (2005).

19. “Determination of Relaxation Time of a Josephson Junction Qubit”, S. K. Dutta, H. Xu, A. J. Berkley, R. C. Ramos, M. A.Gubrud, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, Phys. Rev. B 70, 140502 (2004).

20. “Spectroscopy of Multi-particle Entanglement in a Macroscopic Superconducting Circuit”, Huizhong Xu, Frederick W. Strauch, S. K. Dutta, Philip R. Johnson, R. C. Ramos, A. J. Berkley, H. Paik, J. R. Anderson, A. J. Dragt, C. J. Lobb, and F. C. Wellstood, Phys. Rev. Lett., 94 027003 (2005).

21.  “Capacitively-coupled Josephson Junctions: a Two-Qubit System”, R. C. Ramos, F. W. Strauch, P. R. Johnson , A. J. Berkley, H. Xu, M. A. Gubrud, J. R. Anderson, C. J. Lobb, A. J. Dragt and F. C. Wellstood, IEEE Trans. on Appl. Supercond. 13, 994(2003).

22. “Spectroscopy of Capacitively-coupled Josephson Junction Qubits”, P. R. Johnson, F. W. Strauch, A. J. Dragt, R. C. Ramos, C. J. Lobb, J. R. Anderson and F. C. Wellstood, Rapid Communications, Phys Rev B 67, 020509(R) (2003).

23. “Decoherence in a Josephson Junction Qubit”, A. J. Berkley, H. Xu, R. C. Ramos, J. R. Anderson, C. J. Lobb and F. C. Wellstood, Phys Rev B 68, 060502 (2003).

24. “Characterization of an LC-Isolated Josephson Junction Qubit”, A. J. Berkley, H. Xu, M. A. Gubrud, R. C. Ramos Jr., J. R.Anderson, C. J. Lobb, F. C. Wellstood, IEEE Trans on Appl Supercond. 13, 952 (2003).

25.  "Response to Defining Entanglement by Antoni Wójcik," A. J. Berkley, H. Xu, R. C. Ramos, M. A. Gubrud, F. W. Strauch, P. R. Johnson, J. R. Anderson, A. J. Dragt, C. J. Lobb, and F. Wellstood, Science 301, 1183-1184 (2003).

26. “Entangled Macroscopic Quantum States in Two Superconducting Qubits”, A. J. Berkley, H. Xu, R. C. Ramos, M. A. Gubrud, F. W. Strauch, P. R. Johnson, J. R. Anderson, A. J. Dragt, C. J. Lobb, and F. Wellstood, Science 300, 1548 (2003).

27. “Analysis of Energy Level Quantization and Tunneling from the Zero-voltage State of a Current-biased Josephson Junction”, H. Xu,  A. J. Berkley, M. A. Gubrud, R. C. Ramos, J. R. Anderson, C. J. Lobb, and F. C. Wellstood,   IEEE Trans on Appl Supercond. 13, 956 (2003).

28. "Josephson-junction qubits: entanglement and coherence," J. R. Anderson, A. J. Berkley, A. J. Dragt, M. A. Gubrud, P. R. Johnson, C. J. Lobb, R. C. Ramos, F. W.Strauch, F. C. Wellstood, and H. Xu, Superlattices and Microstructures 32, 231-238 (2003).

29.  “The High-temperature Phase Diagram of Single-layer 3He-4He Mixtures”, R. C. Ramos and O. E. Vilches,  J. Low Temp Phys. Vol 134 (1-2), 55 (2003).

30.  “Design for Effective Thermalization of Junctions for Quantum Coherence”. R. C. Ramos, M. A. Gubrud, A. J. Berkley, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, IEEE Trans. On Appl. Supercond., vol. 11, pp. 998–1001 (2001).

31. “Measurement of Sub-gap Leakage in Nb/AlOx/Nb and Al/AlOx/Al Josephson Junctions”, M. A. Gubrud, R. C. Ramos, J. R. Anderson, C. J. Lobb and F. C. Wellstood, IEEE Trans on Appl Supercond, vol. 11, pp. 1002-1005 (2001).

32. “Calorimetric Study of the Desorption and Phases of 3He and 4He adsorbed on two layers of H2-plated graphite above 0.2K”. R.C. Ramos,  P. Ebey and O.E. Vilches,  J. Low Temp Phys.  Vol 110, No.1/2 , p. 615-20 (1998).

33. “Heat Capacity of Monolayer 3He adsorbed on H2 plated graphite above 0.2K”. O.E. Vilches, R. C. Ramos, D. Ritter and P. Ebey,  Czech J. of Phys Vol 46 (1998).   

34. “Isotopic Ordering in Single-Layer Hydrogen-Deuterium Mixtures”. M. Bienfait, P. Zeppenfeld, R.C. Ramos, Jr., J.M. Gay, O.E. Vilches and G. Coddens, Phys. Rev. B 60 (16), p.11773 (1999).

35. “Liquid-Vapor Coexistence in Two-dimensional 3He-4He Mixtures”. R.C. Ramos, Jr. and O.E. Vilches,  J. Low Temp Phys  Vol. 113, No. 5/6, pp. 981-986 (1998).

36.  “Path Integral Formulation of Ring-Shaped Topological Defects”. R. C. Ramos, Jr., C. Bernido and M. Carpio-Bernido, J. Phys A Vol 27 No. 24  p 8251-67 (1997).

Talks and Presentations (Invited and Contributed)

Invited Presentations

1.     University of Washington Physics Seminar, “Probing Matter using Superconductors”, Seattle, WA, Aug. 2020.

2.     Mindanao State University-Iligan Institute of Technology STEM Colloquium, “Promoting STEM Among Middle School Girls”, Iligan, Philippines, July 2020.

3.     Ateneo de Manila University Physics Colloquium, “Quantum Properties of Multi-gap Superconductors”, Manila, Philippines, Jan. 2020.

4.     Ateneo de Manila University Seminar, “Physics Wonder Girls Program: Sustaining Interest in STEM Among Middle School Girls”, Jan 2020.

5.     Society of Physics Students Zone Meeting Keynote Research Talk, Swarthmore College, “Microwave Resonant Activation of a Josephson Heterojunction: Signatures of Quantum Behavior at milli-Kelvin Temperatures”, Philadelphia, PA, Apr. 2017

6.     8th Jagna International Workshop in Physics: Structure, Formation, and Dynamics “Microwave Resonant Activation of a Josephson Hetero-junction: Signatures of Quantum Behavior at mK Temperatures”, Research Center for Theoretical Physics, Bohol, Philippines, Jan. 2017

7.     8th Jagna International Workshop in Physics: Structure, Formation, and Dynamics “Physics Wonder Girls: Sustaining Interest in STEM Among Middle School Girls”, Bohol, Philippines, Jan. 2017 (invited poster)

8.     Dryer Research Group Seminar, Laboratory for Physical Sciences, “Results of High-Resolution Measurements of Multiple Energy Gaps in Magnesium Diboride”, July, 2015.

9.     University of the Sciences Physics Colloquium, “100 Years of Superconductivity: From Zero Electrical Resistance to Engineering Giant, Artificial Atoms”, Dec, 2014.

10.  Taylor University Physics Colloquium, “100 Years of Superconductivity: From Zero Electrical Resistance to Engineering Giant, Artificial Atoms”, Upland, IN, Dec. 5, 2012.

11.  National Institute of the Physics Colloquium, University of the Philippines, “Sub-Kelvin Quantum Tunneling Studies in MgB2 Josephson Junctions”, Diliman, Quezon City, Philippines, July 2, 2012.

12.  Ball State University Physics Colloquium, “Sub-Kelvin Quantum Tunneling Studies in MgB2 Josephson Junctions”, Muncie, IN, Jan. 26, 2012.

13.  Seton Hall University Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, South Orange, NJ, Apr. 19, 2011.

14.  California Baptist University Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, Riverside, CA, Apr. 14, 2011.

15.  Villanova University Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, Villanova, PA, Mar. 25, 2011.

16.  California State University at San Marcos Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, San Marcos, CA, Mar. 18, 2011.

17.  Indiana Wesleyan University Physics Colloquium, Marion, IN, Mar. 14, 2011.

18.  University of North Dakota Physics Colloquium, Grand Forks, ND, Mar. 11, 2011.

19.  Northern Arizona University Physics Colloquium, Flagstaff, AZ, Mar. 8, 2011.

20.  Richard Stockton College of New Jersey Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, Pomona, NJ, Mar. 3, 2011.

21.  United States Coast Guard Academy Saul Krasner Memorial Science Lecture, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, New London, CT, Mar. 1, 2011.

22.  California Polytechnic University at San Luis Obispo Physics Colloquium, “100 Years of Superconductivity: From Novel Superconductors to Giant, Artificial Atoms”, San Luis Obispo, CA, Mar. 1, 2011.

23.  University of California at Santa Barbara Physics Seminar, “Perspectives and Approaches to Undergraduate Physics Education”, Santa Barbara, CA, Feb. 23, 2011.

24.  Oakland University Physics Colloquium, Auburn Hills, MI, Feb. 17, 2011.

25.  The College of New Jersey Physics Colloquium, Ewing, NJ, Jan 25, 2010.

26.  Southern Illinois University at Edwardsville Physics Colloquium, Edwardsville, IL, Jan 20, 2010.

27.  Sam Houston State University Physics Colloquium, Huntsville, TX, Jan. 19, 2010.

28.  George Mason University Computational Materials Science Center Colloquium, Fairfax, VA, Oct. 18, 2010.

29.  American University Physics Colloquium, “Superconductor-based Artificial Atoms for Quantum Computing”, Washington DC, Dec. 1, 2009.

30.  Temple University Physics Colloquium/Seminar, “Quantum and Classical Behavior in Josephson Junction Devices Near Absolute Zero”, Philadelphia, PA, Sept 14, 2009.

31.  California State University Physics Colloquium, “Quantum and Classical Behavior in Josephson Junction Devices Near Absolute Zero” Fresno, CA , Nov. 20,  2009.

32.  Northrup-Grumman Corporation, “Quantum and Classical Behavior in Josephson Junction Devices” Baltimore, MD, Nov. 12, 2009.

33.  Chestnut Hill College Science Colloquium, “Really Cool Science: Artificial Atoms Cooled to Near Absolute Zero Temperatures”, Philadelphia, PA, Oct 19, 2009.

34.  International Symposium on Quantum Fluids and Solids, “Quantum Metastable States in Graphene-based Josephson Junctions”, Invited Poster Presentation, Northwestern U, Evanston, IL, Aug 6, 2009.

35.  University of Sciences in Philadelphia Science Colloquium, “Superconducting Approaches to Quantum Computing”, Philadelphia, PA Nov 11, 2008.

36.  Drexel University Dean’s Seminar, “Can We Use Superconductors to Build Quantum Computers?”, Philadelphia, PA, Oct 27, 2004.

37.  Applied Superconductivity Conference 2004, “Spectroscopy of Entangled States in Coupled Single-Junction Qubits”, Jacksonville, FL, Oct 8, 2004.

38.  NASA Goddard Space Flight Center, “Quantum Entanglement in Coupled Superconducting Devices”, Greenbelt, MD, May 15, 2004.

39.  Drexel University Colloquium, “Can Macroscopic Electrical Circuits Exhibit Key Features of Quantum Mechanics?” Colloquium, Philadelphia, PA, Apr 29, 2004.

40.  Texas A&M University Colloquium, “Quantum Entanglement in Coupled Superconducting Devices”, College Station, TX, Apr 22, 2004.

41.  Georgetown University Colloquium, “Quantum Entanglement in Coupled Macroscopic Superconducting Qubits”, Washington, DC, Apr 20, 2004.

42.  Southern Illinois University Colloquium, “Quantum Entanglement in Coupled Macroscopic Qubits”,  Carbondale, IL, Apr 12, 2004.

43.  Millersville University  Colloquium, “Can Macroscopic Electrical Circuits Exhibit Key Features of Quantum Mechanics?”, Millersville, PA, Mar 31, 2004.

44.  Loyola College of Maryland Colloquium, “Can Macroscopic Electrical Circuits Exhibit Key Features of Quantum Mechanics?”, Baltimore, MD, Mar 23, 2004.

45.  California State University, Sacramento Colloquium, “Quantum Entanglement in Coupled Superconducting Devices”, CA, Feb 19, 2004.

46.  University of Maryland, Baltimore County Colloquium, “Quantum Entanglement in Josephson Junction Qubits”, Baltimore, MD, Feb12, 2004.

47.  University of Cincinnati Colloquium, “Macroscopic Quantum Entanglement in Coupled Junction Qubits”, Cincinnati, OH, Apr 18, 2003.

48.  Ohio University Colloquium, “Macroscopic Quantum Entanglement in Coupled Superconducting Devices”, Athens, OH, Feb 20, 2003.

49.  University of Washington Condensed Matter Seminar, “Quantum Computing using Superconducting Devices”, Seattle, WA, Jan 14, 2003.

50.  The Feynman Festival Symposium, University of Maryland, “Quantum Computing using Superconducting Devices”, Aug 23-28, 2002.

51.  University of the Philippines Colloquium, “Superconductors for Quantum Computing”, National Institute of Physics, Manila, Philippines, Dec. 1999.

52.  State University of New York at Stony Brook, “Liquid-Vapor Coexistence in Helium Films”, Experimental and Device Physics Group, Stony Brook, NY, March 1999.

53.  Penn State University, “Liquid-Vapor Coexistence in Helium Films”, Low Temperature Group, College Station, PA, March 1999.

54.  University of Rochester, “Liquid-Vapor Coexistence in Helium Films”, EE Dept. Superconducting Digital Electronics Group, Rochester, NY, Feb 1999.

55.  University of California Santa Barbara, “Liquid-Vapor Coexistence in 3He-4He Films”, Low Temperature Group, Santa Barbara, CA, Feb 1999

56.   Lawrence Livermore National Labs, “Heat Capacity Studies of Two-dimensional 3He-4He Mixtures”, Livermore, CA, Feb 1999.

57.   1998 Int’l Symposium on Quantum Fluids and Solids, University of Massachusetts at Amherst, “Liquid-Vapor Coexistence of  Two-dimensional 3He-4He  Mixtures”, Amherst, Massachusetts.

58.  University of the Philippines Colloquium, “New Phase Transitions in Two-dimensional Helium”, National Institute of Physics, Manila, Philippines, Dec. 1997.

Contributed Presentations

1.     2020 Summer Meeting of the AAPT, “A Free Renewable Energy-based Physics Day Camp for Middle School Girls”, July 19-22, 2020 (contributed talk)

2.     2020 Summer Meeting of the AAPT, “The iPad as a virtual oscilloscope for measuring time constants in RC and LR circuits”, July 19-22, 2020 (poster)

3.     2020 APS March Meeting, “Results of Point-Contact Spectroscopy Measurements of the Energy Gap of Ph-doped Iron Pnictides”, Denver, CO, March 2-6, 2020 (contributed talk).

4.     2020 APS March Meeting, “A Free Renewable Energy-based Physics Day Camp for Middle School Girls”, Denver, CO, March 2-6, 2020 (contributed talk).

5.     2020 APS March Meeting, “Quantum Signatures in Superconducting-to-Normal Switching Experiments on a Multigap Superconducting Junction”, Denver, CO, March 2-6, 2020 (poster).

6.     2019 APS March Meeting, “Point Contact Spectroscopy of Iron Pnictides: Probing Superconductors to Observe the Gap Structures of (P, Co, K) Doped Iron Pnictides”, K.Ramanathan et al., Boston, MA, March 4-8, 2019 (poster).

7.     2019 APS March Meeting, “Analysis of tunneling spectroscopy measurements of Assymetrical all-MgB2 Thin Film Josephson Junctions”, R. Ramos et al.”, Boston, MA, March 4-8, 2019 (poster).

8.     2019 AAPT Winter Meeting. “Flipping Introductory Physics: Impact of Feedback Quizzes and Student-Generated Videos”, R.C. Ramos, Houston, TX, January 12-15, 2019 (contributed talk)

9.     2019 AAPT Winter Meeting, “Student Responses to University Flipped Physics Classes with Feedback Quizzes”, R.C. Ramos, Houston, TX, January 12-15, 2019 (poster).

10.  2019 AAPT Winter Meeting, “Physics of Light and Food: Enabling a Physics Girls Camp”, K. Ramos and R.C. Ramos, Houston, TX, January 12-15. 2019 (poster).

11.  2018 APS-MAS Annual Meeting, “Point Contact Spectroscopy of Iron Pnictides: Probing Superconductors to Observe the Gap Structures of Phosphorus Doped Iron Pnictides”, Brett Conti, Oberon Wackwitz, Guotai Tan, Yu Song, Rui Zhang, Hu Ding, Chenglin Zhang, Pencheng Dai and Roberto Ramos, Nov. 9-10, 2018,University of Maryland, College Park, MD (poster)

12.  2018 APS-MAS Annual Meeting, “Probing  the  Superconducting Energy Gaps of an Assymetrical all-MgB2 Josephson Junction”, Roberto Ramos, Joseph Lambert, Masahito Sakoda, and Michio Naito, Nov. 9-10, 2018, University of Maryland, College Park, MD (poster).

13.  2018 APS March Meeting, “Energy Gap Measurements of K-doped, Co-doped, and P-doped Ba(1-x)KxFe2As2 Superconductors using Soft Point Contact Spectroscopy using Point Contact Spectroscopy”, Oberon Wackwitz, Luke Conover, Caitlyn McConnell, Brett Conti, Guotai Tan, Yu Song, Chenglin Zhang, Rui Zhang, Ding Hu, Pengcheng Dai, and Roberto Ramos, March 5-9, 2019, Los Angeles, CA (contributed talk)

14.  2018 APS March Meeting, “Multiple Energy Gaps via Soft Point Contact Spectroscopy of Doped Ba(1-x)KxFe2As2”, Caitlyn McConnell, Oberon Wackwitz, Luke Conover, Brett Conti, Guotai Tan, Yu Song, Chenglin Zhang, Rui Zhang, Ding Hu, Pengcheng Dai, and Roberto Ramos March 5-9, 2018, Los Angeles, CA (poster)

15.  2018 APS March Meeting, “Student Responses to Out-of-Classroom and In-Classroom Activities in a Flipped Physics Class”, Despina Nakos and Roberto Ramos, March 5-9, 2018, Los Angeles, CA (contributed talk).

16.  2018 APS March Meeting, “Physics Wonder Girls Camp”, Roberto Ramos, March 5-9, 2018, Los Angeles, CA (contributed talk).

17.  2017 APS-MAS Annual Meeting, “Student Responses to a Flipped Physics Class Environment with Built-in Feedback Quizzes”, Despina Nakos and Roberto Ramos, Nov. 3-4, 2017, NJIT, NJ (poster)

18.  2017 APS-MAS Annual Meeting, “Enhancing Physics Outreach Locally, Regionally, and Nationally through the Society of Physics Students”, Roberto Ramos and Hannah Buckner, Nov. 3-4, 2017, NJIT, NJ (poster)

19.  2017 APS-MAS Annual Meeting, “Optimizing Sample Preparation for Soft Point Contact Spectroscopy of Iron Pnictude Crystals”, Caitlyn McConnell, Oberon Wackwitz, Luke Conover, Guotai Tan, Yu Song, Rui Zhang, Hu Ding, Chenglin Zhang, Pencheng Dai and Roberto Ramos, Nov. 3-4, 2017, NJIT, NJ (poster)

20.  2017 APS-MAS Annual Meeting, “Measuring the Superconducting Energy Gaps of Doped Iron Pnictide Superconductors Ba_(1-x) K_x Fe_2 A_2 using Soft Point Contact Spectroscopy”, Oberon Wackwitz, Luke Conover, Caitlyn McConnell, Guotai Tan, Yu Song, Chenglin Zhang, Pencheng Dai and Roberto Ramos, Nov. 3-4, 2017, NJIT, NJ (poster)

21.  2017 APS March Meeting, “Point Contact Spectroscopy of Iron Pnictide: Probing Multigap Superconductors to Observe Energy Gaps of Ba(1−x)KxFe2As2”, Luke Conover, Oberon Wackwitz, Sam Biche, Joseph Lambert, Pencheng Dai, Chenglin Zhang, Yu Song, Guotai Tan, and Roberto Ramos, March 13-17, 2017, New Orleans, LA (contributed talk)

22.  2017 APS March Meeting, “Energy Gap Measurements of K-Doped Iron Pnictide Superconductor

Ba(1-x)KxFe2As2”, using Point Contact Spectroscopy”, Oberon Wackwitz, Luke Conover, Sam Biche, Joseph Lambert, Pencheng Dai, Chenglin Zhang, Yu Song, Guotai Tan, and Roberto Ramos, March 13-17, 2017, New Orleans, LA (poster)

23.  2017 APS March Meeting, “Determining the energy gaps of MgB2 electrodes in all-MgB2 Josephson junctions using tunneling spectroscopy”, Joseph Lambert, Masahito Sakoda, Michio Naito, and Roberto Ramos, March 13-17, 2017, New Orleans, LA. (contributed talk)

24.  2017 APS March Meeting, “Microwave resonant activation in hybrid single-gap/two-gap Josephson tunnel junctions”, Roberto Ramos, Steven Carabello, Joseph Lambert, Jerome Mlack, Wenqing Dai, Qi Li, Ke Chen, Daniel Cunnane, and Xiaoxing X. Xi, March 13-17, 2017, New Orleans, LA (contributed talk)

25.  2016 APS March Meeting, “Comparative Analysis of two Methods for High-Resolution Differential Conductance Measurement”, David Cusick, Michio Naito, and Roberto Ramos, March 14-18, 2016, Baltimore, MD (contributed talk).

26.  2016 APS March Meeting, “"Hybrid" multi-gap/single-gap Josephson junctions: Evidence of macroscopic quantum tunneling in superconducting-to-normal switching experiments on MgB2/I/Pb and MgB2/I/Sn junctions”, Steven Carabello, Joseph Lambert, Jerome Mlack, Wenqing Dai, Qi Li, Ke Chen, Daniel Cunnane, Xiaoxing X. Xi,  and Roberto Ramos, March 14-18, 2016, Baltimore, MD (contributed talk)

27.  2016 APS March Meeting, “Student Responses to a Flipped Introductory Physics Class with built-in Post-Video Feedback Quizzes”, Roberto Ramos, March 14-18, 2016, Baltimore, MD (contributed talk)

28.  2015 AAPT Summer Meeting, “Flipping University Physics Classes: Student Responses to Video Packages, Feedback, and Pre-/Post-Test”, July 25-29, 2015, College Park, MD (contributed talk)

29.  2015 AAPT Summer Meeting, “Physics Wonder Girls: Sustaining Interest in STEM Among Middle School Girls”, July 25-29, 2015, College Park, MD (poster)

30.  2015 APS March Meeting, “Multi-mode Fabry-Perot Interferences in SiO2-supported Single Layer Graphene, in Large Aspect Ratio Two-terminal Devices”, Joseph Lambert, Steven Carabello, and Roberto Ramos, March 2-6, 2015, San Antonio, TX.

31.  2015 APS March Meeting, “Microwave Resonant Activation Results in Hybrid MgB2/I/Pb and MgB2/I/Sn Josephson Junctions with Low to Moderate Damping”, Steven Carabello, Joseph Lambert, Jerome Mlack, Wenqing Dai, Qi Li, Ke Chen, Daniel Cunnane, Xiaoxing X. Xi,  and Roberto Ramos, March 2-6, 2015, San Antonio, TX.

32.  2015 APS March Meeting, “Differential Conductance Measurements of MgB2/I/Pb Heterojunctions and all-MgB2 Junctions”, David Cusick, Matt Eckhardt, Wenqing Dai, Qi Li, Ke Chen, Daniel Cunnane, Michio Naito, Xiaoxing X. Xi,  and Roberto Ramos, March 2-6, 2015, San Antonio, TX.

33.  2015 APS March Meeting, “Multiple Andreev Reflections in MgB2/I/Pb Heterojunctions Cooled below 1 Kelvin”, Roberto Ramos, Steven Carabello, Joseph Lambert, Wenqing Dai, Qi Li, Ke Chen, Daniel Cunnane, and Xiaoxing X. Xi,  and Roberto Ramos, March 2-6, 2015, San Antonio, TX.

34.  2014 ASC Conference, “Conductance Fluctuations and Quantum Dot Behavior in Short and Wide Superconducting Graphene Devices”, Joseph Lambert, Steven Carabello, and Roberto Ramos, August 10-15, 2014, Charlotte, NC.

35.  2014 ASC Conference, “Observation of Multi-photon Transitions in a Near-millimeter-sized Josephson Junction”,  Roberto Ramos, Steven Carabello, Joseph Lambert, Jerome Mlack; Wenqing Dai; Qi Li; Ke Chen; Daniel Cunnane and Xiaoxing X. Xi, August 10-15, 2014, Charlotte, NC.

36.  2014 ASC Conference, “SIS' conductance in magnesium diboride-based Josephson junctions: Beyond the 2-gap model”,  Steven Carabello, Joseph Lambert, Jerome Mlack; Wenqing Dai; Qi Li; Ke Chen; Daniel Cunnane; Xiaoxing X. Xi;  and Roberto Ramos, August 10-15, 2014, Charlotte, NC.

37.  2014 PAASE Symposium “Physics Wonder Girls: Sustaining Interest in STEM Among Middle School Girls”, May 23-24, 2014, North Carolina State University, Durham, NC.

38.  2014 PAASE Symposium “Highest Resolution Conductance Measurements of Magnesium Diboride-based

Josephson Junctions Below 1 Kelvin: Uncovering Sub-structures Beyond the 2-Gap Model Predictions”,

May 23-24, 2014, North Carolina State University, Durham, NC.

39.  2014 APS March Meeting, “Multi-photon Transitions in a near-millimeter-sized superconducting device”, R.C. Ramos, S.C.Carabello, J.G. Lambert, D. Cunnane, W. Dai, Q. Li, K. Chen and  X.X. Xi , March 2014, Denver, CO.

40.   2014 APS March Meeting, “Multiple open quantum dot behavior in short and wide graphene devices with disorder”, J.G. Lambert, S.C. Carabello, and R.C. Ramos, March 2014, Denver, CO.

41.  2014 APS March Meeting, “Conductance Measurements of Magnesium Diboride-based Josephson Junctions Below 1 Kelvin: Beyond the 2-Gap Model” S.C. Carabello, J.G. Lambert, D. Cunnane, W. Dai, Q. Li, K. Chen, X. X. Xi and R.C. Ramos, March 2014, Denver, CO.

42.  2014 APS March Meeting, “Development of Tunneling Spectroscopy Apparatus for Kelvin and Sub-Kelvin Measurements of Superconducting Energy Gaps by Multi-disciplinary students at a Liberal Arts University”, C. Chapman, J. Ostrander, H. Rose, and R.C. Ramos , March 2014, Denver, CO.

43.  2013 AAPT Summer Meeting, “Flipping a College Physics Class using Video Lectures and PER Tutorials”, R.C. Ramos, July 15, 2013, Portland, OR.

44.  2013 AAPT Summer Meeting, “The  iPAD as a Virtual Oscilloscope in Introductory Physics Laboratories”, R.C. Ramos, July 16, 2013, Portland, OR.

45.  2013 AAPT Summer Meeting, “Results of Flipping Classes in Introductory Mechanics and E&M”,  R.C. Ramos, July 17, 2013, Portland, OR.

46.  2013 APS March Meeting, “Evidence for Multi-photon transitions between energy levels in a large current-biased Magnesium Diboride Josephson heterojunction”, R.C. Ramos, S.C.Carabello, J.G. Lambert, D. Cunnane, W. Dai, Q. Li, K. Chen and  X.X. Xi , March 18-22, 2013, Baltimore, MD.

47.  2013 APS March Meeting, “Results of Switching Measurements in MgB2 Josephson Heterojunctions: Search for Multiple Tunneling Channels and Leggett-Mode Signatures”, S.C. Carabello, J.G. Lambert, D. Cunnane, W. Dai, Q. Li, K. Chen, X. X. Xi and R.C. Ramos, March 18-22, 2013, Baltimore, MD.

48.  2013 APS March Meeting, “Conductance Fluctuation and Superconducting-to-Normal State Switching measurements of Superconducting Graphene devices”, J.G. Lambert, S.C.Carabello, and R.C. Ramos, March 18-22, 2013, Baltimore, MD.

49.  2013 APS March Meeting, “Building and testing a superconductivity measurement platform for a helium cryostat”, H. Rose, J. Ostrander, J. Wu, and R.C. Ramos, March 18-22, 2013, Baltimore, MD.

50.  2013 APS March Meeting, “Physics Outreach to Rural Pre-College Students by a Multi-disciplinary SPS Chapter”, J. Ostrander, H. Rose, R. Burchell, and R.C. Ramos, March 18-22, 2013, Baltimore, MD.

51.  2012 Sigma Pi Sigma Quadrennial Physics Congress, “Using the iPAD as a Virtual Oscilloscope for the Undergraduate Physics Laboratory “, R. Burchell and R. Ramos, Orlando, FL, Nov 8-10, 2012. Poster.

52.  2012 ASC Applied Superconductivity Conference, “Fabrication of Graphene-based Josephson junctions for Superconducting-to-Normal Switching Measurements”, J.G. Lambert, S.C. Carabello, and R.C. Ramos, Portland, OR, Oct. 10, 2012. Poster.

53.  2012 ASC Applied Superconductivity Conference, “Quantum Behavior of Large (0.2 x 0.3 mm2) Magnesium Diboride Josephson Junctions”, R.C. Ramos,  S.C. Carabello, J.G. Lambert, D. Cunnane, W. Dai, Q. Li, K. Chen, X.X. Xi, Portland, OR, Oct. 10, 2012. Poster.

54.  2012 Principium Research Lecture, “Quantum Mechanics in Near-Millimeter-sized Objects”, R.C. Ramos, Sept. 24, 2012, Marion, IN. Talk.

55.  2012 M2S Materials and Mechanisms of Superconductivity, “Results of Superconducting-to-Normal Switching Experiments in MgB2/I/Pb Josephson Junctions: Distinctive Features of a Multi-Gap Superconductor”, S.C. Carabello, J.G. Lambert, R.C. Ramos, J. Mlack, W. Dai, Y. Shen, Q. Li, D. Cunnane, C.G.. Zhuang, K. Chen, and X. X. Xi, Washington, D.C. July 29-Aug 3, 2012. Poster.

56.  2012 M2S Materials and Mechanisms of Superconductivity, “Experiments on Resonant Activation and Macroscopic Quantum Tunneling in Magnesium DiBoride Thin Film Josephson Junctions”, R. C. Ramos, S.C. Carabello, J.G. Lambert, J. Mlack, W. Dai, Y. Shen, Q. Li, D. Cunnane, C.G.. Zhuang, K. Chen, and X. X. Xi, Washington, D.C. July 29-Aug 3, 2012. Poster.

57.  2012 PAASE (Phil-American Academy of Scientists & Engineers) Annual Symposium, “Engineering Quantum Mechanics beyond the Mesoscale”,  R.C. Ramos, May 4-5, 2012, Houston, TX. Talk.

58.  2012 PAASE (Phil-American Academy of Scientists & Engineers) Annual Symposium, “Using the iPAD as a Virtual Oscilloscope and Video-Motion Analysis Tool”,  R.C. Ramos, May 4-5, 2012, Houston, TX. Poster.

59.  2012 APS March Meeting, “Results of Resonant Activation and Macroscopic Quantum Tunneling Experiments in Magnesium DiBoride Thin Film Josephson Junctions”, R. C. Ramos, S.C. Carabello, J.G. Lambert, J. Mlack, W. Dai, Y. Shen, Q. Li, D. Cunnane, C.G.. Zhuang, K. Chen, and X. X. Xi, Boston, MA, Feb. 27-Mar. 2, 2012. Talk.

60.  2012 APS March Meeting, “Superconducting-to-Normal Switching and I-V Experiments showing Multiple Tunneling Channels in a Multi-gap Superconductor”, S.C. Carabello, J.G. Lambert, R.C. Ramos, J. Mlack, W. Dai, Y. Shen, Q. Li, D. Cunnane, C.G.. Zhuang, K. Chen, and X. X. Xi, Boston, MA, Feb. 27-Mar. 2, 2012.Talk.

61.  2012 APS March Meeting, “Using the IPAD as a Pedagogical Tool: Focus on Angular Motion Analysis with Real-World Applications”, L. Bush, A. Garriott and R. C. Ramos,  Boston, MA, Feb. 27-Mar. 2, 2012. Poster.

62.  2012 APS March Meeting, “The IPAD as a Pedagogical Tool in an Algebra-Based Intro-ductory Physics Class”, A. Garriott, L. Bush, and R. C. Ramos,  Boston, MA, Feb. 27-Mar. 2, 2012. Talk.

63.  2011 APS Ohio Section Fall Meeting, “Measurements of Resonant Activation and Multiple Gap Structure in MgB2 Thin Film Josephson Junctions near 1 Kelvin”, Muncie, IN, Oct. 14-15, 2011. Talk

64.  2011 APS March Meeting, “Switching Experiments on a Current-Biased MgB2 Josephson Junction” R. C. Ramos, J.G. Lambert, S. A. Carabello and J.T. Mlack, Dallas, TX, Mar. 21-25, 2011. Talk

65.  2011 APS March Meeting, “Measurements of Multiple Gap Substructure in MgB2 Below 1 Kelvin” S.A. Carabello, J.G. Lambert, and R. C. Ramos, Dallas, TX, Mar. 21-25, 2011. Talk

66.  2011 APS March Meeting, “Effect of Laser Irradiation on Structural and Electronic Properties of Single-layer and Bi-layer Graphene” P. Galwaduge, J.G. Lambert, and R. C. Ramos, Dallas, TX, Mar. 21-25, 2011.

67.  2011 APS March Meeting, “Superconducting-to-Normal State Switching Experiments using Graphene-based Josephson Junctions” S.A. Carabello, J.G. Lambert, and R. C. Ramos, Dallas, TX, Mar. 21-25, 2011.

68.  2011 APS March Meeting, “Celebrating Five Years of SPS: A lesson in building physics outreach from scratch” J. Mlack and R. C. Ramos, Dallas, TX, Mar. 21-25, 2011.

69.  2010 ASC Applied Superconductivity Conference, “Microwave Resonant Activation of MgB2 Thin Film Josephson Junction”,  R. C. Ramos, J.G. Lambert, S. A. Carabello and J.T. Mlack, Washington, DC, Aug. 1-6, 2010. Talk.

70.  2010 ASC Applied Superconductivity Conference, “Resonant Activation from the zero-voltage state of a current-biased MgB2 Josephson junction”, R. C. Ramos, J.G. Lambert, S. A. Carabello and J.T. Mlack, Washington, DC, Aug. 1-6, 2010. Poster.

71.  2010 ASC Applied Superconductivity Conference, “Differential Conductance Measurements of MgB2 –based Josephson junctions below 1 Kelvin”, S. A. Carabello, J. G. Lambert, J.T. Mlack, and R. C. Ramos, Washington, DC, Aug. 1-6, 2010. Poster.

72.  2010 ASC Applied Superconductivity Conference, “Exploring the Sigma and Pi Band Gaps of MgB2 by characterizing MgB2/I/Pb and MgB2/I/ Josephson junctios below 1 Kelvin”, S. A. Carabello, J. G. Lambert, J.T. Mlack, and R. C. Ramos, Washington, DC, Aug. 1-6, 2010. Poster.

73.  2010 ASC Applied Superconductivity Conference, “Resonant Activation of current-biased Josephson junctions near the Classical-Quantum Crossover,  Z. Thailkill, J.G. lambert, S. A. Carabello, J. G. Lambert, J.T. Mlack, and R. C. Ramos, Washington, DC, Aug. 1-6, 2010. Poster.

74.  2010 APS March Meeting, "Microwave Activation of a Current-Biased Josephson Junction~Near the Classical-Quantum Crossover",  Z. Thrailkill, J.G. Lambert, S.A. Carabello, T. Galwaduge and R.C. Ramos, Portland, OR, Mar. 15-19. 2010. Talk.

75.  2010 APS March Meeting, "Microwave Resonant Activation of MgB2 Thin Film Josephson Junction", R.C. Ramos,J. Lambert, S. Carabello and J. Mlack and R.C. Ramos, Portland, OR, Mar. 15-19. 2010. Talk.

76.  2010 APS March Meeting, "Investigating Classical and Quantum Behavior of Graphene-based Josephson Junctions", J.G. Lambert, S.A. Carabello, Z. Thrailkill, T. Galwaduge and R.C. Ramos, Portland, OR, Mar. 15-19. 2010. Talk.

77.  2010 APS March Meeting, "Laser Induced Structural Modification of Single Layer and Bilayer Graphene", T. Galwaduge, J.G. Lambert and R.C. Ramos Portland, OR, Mar. 15-19. 2010. Talk.

78.  2010 APS March Meeting, "Multiple Resonators as a Multi-Channel Bus for Coupling Josephson Junction Qubits", T. Galwaduge, J.G. Lambert and R.C. Ramos, Portland, OR, Mar. 15-19. 2010. Poster

79.  2010 APS March Meeting, “Investigating Possible Quantum Metastable States in Graphene-based Josephson Junctions”, J.G. Lambert, S.A. Carabello, Z. Thrailkill, T. Galwaduge and R.C. Ramos, Portland, OR, Mar. 15-19. 2010. Poster.

80.  2010 IEEE Graduate Student Forum, “Electrically Engineering Drexel's First Superconducting Artificial Atom”, J. G. Lambert, S. Carabello, and R.C.  Ramos, Feb. 26, 2010. Philadelphia, PA. Poster.

81.  2010 IEEE Graduate Student Forum, “Classical to Quantum Crossover Behavior of Drexel's First Solid-state Quantum Bit”, Z. Thrailkill,  J. G. Lambert, S. Carabello, P. Galwaduge, and R.C.  Ramos, Feb. 26, 2010. Philadelphia, PA. Poster.

82.  2010 IEEE Graduate Student Forum, “Differential Conductance and Microwave Resonant Activation Measurements of MgB2-based Superconducting Josephson Junctions”, S. Carabello, J. G. Lambert,  P. Galwaduge, and R.C.  Ramos, Feb. 26, 2010. Philadelphia, PA. Poster.

83.  2010 IEEE Graduate Student Forum, “Changes in the charge carrier concentration of graphene under laser irradiation”, P. Galwaduge, J. G. Lambert,  and R.C. Ramos, Feb. 26, 2010. Philadelphia, PA. Poster.

84.  2009 MRS Materials Research Society Fall Meeting, “Quantum States in Graphene-Based Josephson Junctions”,  S. Carabello, J. Lambert, and R. C. Ramos, Boston, MA, Nov 30- Dec 4, 2009. Poster.

85.  2009 QFS Int’l Symposium on Quantum Fluids and Solids, “Quantum Metastable States in Graphene-based Josephsons”,  J. Lambert, S. Carabello, Z. Thrailkill and R. C. Ramos, 2009 International Symposium on Quantum Fluids and Solids, Northwestern University, Evanston, IL, Aug 6-11, 2009. Talk/Poster.

86.  2009 ISEC Int’l Superconductive Electronics Conference, “Quantum Metastable States in Superconducting Graphene Josephson Junction Devices”, R. C. Ramos, J. Lambert, S. Carabello and Z. Thrailkill, Fukuoka, Japan, June 16-19, 2009. Poster.

87.  2009 ISEC Int’l Superconductive Electronics Conference, “Berry's Phase in the Josephson Phase Qubit”, A. Tyler and R. C. Ramos, Fukuoka, Japan, June 16-19, 2009. Poster.

88.  2009 ISEC Int’l Superconductive Electronics Conference, “Multiple Resonators Coupling Josephson Qubits as a Multi-Channel Bus”,  Z. Thrailkill and R. C. Ramos, Fukuoka, Japan, June 16-19, 2009, Poster.

89.  2009 University Research Day, “Investigation of Lasing in Superconducting Phase Qubits”, A. Wilson and R. C. Ramos, Drexel University, Philadelphia, PA, April 23, 2009,  Best Undergraduate Research Award in Physical Sciences and Engineering. Poster.

90.  2009 University Research Day, “Quantum States in Graphene-based Josephson Junctions”, J. Lambert, S. Carabello and R. C. Ramos, Drexel University, Philadelphia, PA, Apr 23, 2009. Poster.

91.  2009 University Research Day, “Three and Four Coupled Josephson Junction Phase Qubits”, Z. Thrailkill, J. Lambert, S. Kennerly, and R. C. Ramos, Drexel University, Philadelphia, PA, Apr 23, 2009. Poster.

92.  2009 University Research Day, “Undergraduate Research Projects reducing RF and Microwave Noise in a Quantum Computing Experiment”, T. Galwaduge, J. Mlack and R. C. Ramos, Drexel U., Philadelphia, PA, Apr 23, 2009. Poster.

93.   2009 APS March Meeting, “Berry's Phase of a Current-Biased Josephson Junction”, A. Tyler and R. C. Ramos, Pittsburg, PA, Mar 16-20, 2009. Talk.

94.  2009 APS March Meeting, “Investigating the quantum behavior of a graphene-based Josephson Junction”, J. Lambert, Z. Thrailkill, and R. C. Ramos, Pittsburg, PA, Mar.16-20, 2009. Talk.

95.  2009 APS March Meeting, “Three and Four Coupled Josephson Junction Phase Qubits”, Z. Thrailkill, J. Lambert, S. Kennerly, and R. C. Ramos, Pittsburg, PA, Mar 16-20, 2009. Talk.

96.  2009 APS March Meeting, “Undergraduate Research with Josephson Qubits: From Fabrication to Spectroscopy”, A. Wilson, J. Mlack, A. Tyler, Z. Thrailkill, J. Lambert and R. C. Ramos, Pittsburg, PA, Mar 16-20, 2009. Talk.

97.  2009 APS March Meeting, “Higher Energy Levels in Qubit Networks”, Z. Thrailkill, J. Lambert, and R. C. Ramos, Pittsburg, PA, Mar 16-20, 2009. Poster.

98.  2009 APS March Meeting, “Lasing in Superconducting Qubits”, A. Wilson and R. C. Ramos, Pittsburg, PA, Mar 16-20, 2009. Poster.

99.  2009 AAPT Winter Meeting, American Association of Physics Teachers, “Berry's Phase in a Superconducting Josephson Phase Qubit”, A. Tyler and R. C. Ramos, Undergraduate Research Session, Chicago, IL, Feb 12-16, 2009. Talk.

100.         2008 Sigma Xi National Student Research Conference, “Berry’s Phase in a Superconducting Qubit”, A. Tyler and R. C. Ramos, Washington, D.C., Nov 20-23, 2008. Poster.

101.         2008 Sigma Pi Sigma Quadrennial Physics Congress, “Optimization of  Microwave Powder Filters for Microwave Attenuation”, J. Mlack, E. Teitelbaum, Z. Thrailkill and R.C. Ramos, Fermilab, Batavia, IL, Nov 6-8, 2009. Poster.

102.         2008 ASC Applied Superconductivity Conference, “Modeling Three- and Four- Coupled Phase Qubits”, Z. Thrailkill, S. Kennerly and R.C. Ramos, Chicago, IL, Aug 17-22, 2008. Poster.

103.         2008 LT25 Int’l Low Temperature Conference, “Energies and Entanglement in Multiply-coupled Phase Qubit Systems”, Z. Thrailkill, S. Kennerly, A. Tyler and R. C. Ramos, Amsterdam, The Netherlands, Aug 6 – 13, 2008. Poster.

104.         2008 Drexel Workship on Topology and Physics, “Detection of Berry’s Phase in a Josephson Junction”,  A.Tyler and R. C. Ramos, Drexel University, Philadelphia, PA, Aug 2008. Poster.

105.         2008 PAASE 28th Annual Symposium of the Philippine-American Academy of Scientists and Engineers, “Spectroscopy of Coupled Artificial Atoms”, R. C. Ramos,  Georgetown University, Washington, DC, May 22-24, 2008. Talk

106.         2007 Drexel University Research Day, “Spectroscopy of Multiply-coupled Phase Qubits”, Z. Thrailkill, S. Kennerly, J. Lambert and R. C. Ramos, Drexel University, Philadelphia, PA, April 2008. Poster.

107.         2007 Nanotechnology Discovery Workshop, “Nanotechnology Applications of Superconducting Quantum Devices”, R. C. Ramos, Drexel University Bossone Research Institute, Philadelphia, PA, March 2007. Talk.

108.         2006 Sigma Xi Research Society Regional Student Symposium, “Quantum States and Energy Levels of Multiple Coupled Josephson Junction Qubits”, Y. Sun and R. C. Ramos, Awarded Most Outstanding Graduate Student Presentation, St. Joseph’s University, Philadelphia, PA, Apr 22, 2006. Poster.

109.         2006 ASC Applied Superconductivity Conference, “Quantum Behavior of the dc SQUID”, K Mitra, B.K. Cooper, S.K. Dutta, H Paik, R.M. Lewis, T.A. Palomaki, R.C. Ramos, A.J. Dragt, J.R. Anderson, C.J. Lobb and F.C Wellstood, Seattle, WA, Aug. 27-Sept.1, 2006. Talk.

110.         2006 ASC Applied Superconductivity Conference, “Measurement of Escape Rates and Rabi Oscillations in a dc SQUID using Pulsed Current Sampling”, T. Palomaki, et al., Seattle, WA, Aug. 27-Sept. 1, 2006.Talk

111.         2006 ASC Applied Superconductivity Conference, “Rabi Oscillations in an asymmetric dc SQUID qubit with a gradiometer loop”, H. Paik, et al., Seattle, WA, Aug. 27-Sept. 1, 2006. Talk.

112.         2006 Drexel Research Day, “Quantum States and Energy Levels of Multiple Coupled Josephson Junction Qubits”, Y. Sun, W. Bi, Y. Yang and R. C. Ramos. Drexel U., Philadelphia, PA, April 25, 2006. Poster.

113.         2006 Drexel Research Day, “Energy Levels of a Josephson Junction Qubit Entangled with an LC Harmonic Oscillator” Y. Yang and R. C. Ramos, Drexel U., Philadelphia, PA, April 25, 2006. Poster.

114.         2006 Drexel Research Day, “How Things Work: Using Clickers and Lecture Demonstrations together for Active Feedback”, W. Bi and R. Ramos, Drexel U., Philadelphia, PA, April 25, 2006. Poster.

115.         2004 ASC Applied Superconductivity Conference, A Cooper pair box as a variable capacitor”, H. Paik, et al., Jacksonville, FL, Oct 3-8, 2004. Talk.

116.         2004 ASC Applied Superconductivity Conference, “Resonant Coupling between two Josephson junction qubits”, H. Xu, et. al., Jacksonville, FL, Oct 3-8, 2004. Talk.

117.         2004 ASC Applied Superconductivity Conference, “Quantum control and qubit storage using LC modes in superconducting qubit circuits”, P.R. Johnson, et al., Jacksonville, FL, Oct 3-8, 2004. Talk.

118.         2004 PAASE 24th Annual Symposium of the Philippine-American Academy of Scientists and Engineers, “Can Macroscopic Circuits Exhibit Key Features of Quantum Mechanics”, University of Maryland, College Park, MD, Sept, 2004. Talk.

119.         2003 Int’l Symposium on  Clusters and Nano-Assemblies, “Entanglement of Macroscopic Quantum States in Coupled Josephson Phase Qubits”, Richmond, VA, Nov. 11, 2003.

120.         2003 APS Ohio-Michigan Section Meeting,“Spectroscopy of Macroscopic Quantum States of Two Coupled Junctions”, East Lansing, MI, April 12,2003. Talk.

121.         2003 Int’l Quantum Fluids and Solids Symposium, “The High-Temperature Phases of Single-layer 3He-4He Mixtures”, Albuquerque, NM, Aug. 3-8, 2003. Poster.

122.         2003 APS March Meeting, “Entanglement and Quantum Correlations in Capacitively-Coupled Junction Qubits”, Austin, TX, March 3-7, 2003. Talk.

123.         2002 PAASE 22nd Symposium of the Philippine-American Academy of Scientists and Engineers, “Quantum Computing using Superconducting Devices”, Solomon Islands, MD, Aug. 21-24, 2002. Talk.

124.         2002 Applied Superconductivity Conference, “Capacitively-coupled Josephson Junctions: a Two Qubit System”, Houston, TX, Aug 4-9, 2002. Talk.

125.         2002 APS March Meeting, “The Current-Biased Josephson Junction Qubit: Comparison with  other Superconducting Qubits”, Indianapolis, PA. Talk.

126.         2001 APS March Meeting, “Effective Thermalization of Josephson Junctions for Quantum Coherence”, Seattle, WA. Talk.

127.         Symposium on the One Hundred Years of the Quantum: From Max Planck to Entanglement at University of Puget Sound, “Quantum Computation using Superconducting Devices,” in  , Tacoma, WA, October 2000.  Talk.

128.         2000 Applied Superconductivity Conference “Effective Thermalization of Josephson Junctions for Quantum Computing”, Virginia Beach, VA, Aug, 2000. Talk.

129.         2000 APS March Meeting, “3He-4He Two-dimensional Mixtures: Towards the completion of a Density-Temperature-Concentration Diagram”, Co-author, Minneapolis, MN. Talk.

130.         1999 APS March Meeting, “Liquid Vapor Coexistence in Single Layer 3He-4He” Mixtures, Atlanta, GA, March 1999. Talk.

131.         1998 APS March Meeting, “The Heat Capacity of Monolayer Films of 3He-4He Adsorbed on H2-Plated Graphite”, Los-Angeles, CA, March 1998. Talk.

132.         1997 Int’l Symposium on Quantum Fluids and Solids, “Thermodynamic Phases and Desorption of Pure 3He and 4He Films on H2-plated Graphite”, Paris, France, March 1997. Talk.

133.         1997 APS March Meeting, “Heat Capacity and Desorption of Monolayer 3He adsorbed on H2-Plated Graphite”, Kansas City, Missouri. March 1997. Talk.

134.         1996 LT 21 Int’l Conference on Low Temperature Physics, “Heat Capacity Studies of Monolayer 3He adsorbed on H2-Plated Graphite”, Prague, Czechoslovakia, Feb. 1996. Talk.