PRESENTATIONS
Invited talks
77. End-t0-End Channel Capacities for Quantum Network,
Quantum Information Seminar, Division of Liberal Studies, Kangwon National University (KNU), Korea (2024. 02. 13) [Online]
76. Quantum Communications: Progress and Challenge,
Quantum Information (KHUQI) Seminar, Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea (2024. 01. 09)
75. Anomaly of Quantum Channel Capacity and Quantum Network,
2023 Korea Supercomputing Conference (KSC 2023), The K-Hotel, Seoul, Korea (2023. 08. 21)
74. Quantum Entanglement, Channel Capacity, and Quantum Network,
KSIAM-NIMS Summer School & Workshop on Quantum Computing, Dongseo Univ., Pusan, Korea (2023. 08. 09)
73. Theoretical Preconditions of the Quantum Network,
KNU-SNU Mini Workshop on Quantum State Discrimination & Quantum Information Theory, Kangwon National University, Samcheok, Korea (2023. 07. 14)
72. Our Steps Towards the quantum internet,
SI-QST Special Seminar, Sihnil High School, Seoul, Korea (2023. 06. 07)
71. 양자인터넷을 향한 우리의 발걸음,
금요일에 과학터치, National Research Foundation of Korea (NRF), Busan, Korea (2023. 06. 02)
70. Introduction to QMLs for Solving Noisy Linear Problem,
2023 Workshop for Quantum Computation and Quantum Information, Dongseo University (DSU), Busan, Korea (2023. 05. 24)
69. Introduction to Research Topics of Team QST,
Advisory Seminar, Busan Center for Medical Mathematics, National Institute for Mathematical Sciences (NIMS), Busan, Korea (2023. 04. 26)
68. 양자인터넷과 양자채널용량,
2023 Physics Colloquium, Department of Physics, Kyungpook National University (KNU), Daegu, Korea (2023. 04. 12)
67. Fundamental principles in quantum information science and our universe,
SI-QST Special Seminar, Sihnil High School, Seoul, Korea (2023. 04. 05)
66. Quantum Solvability of Noisy Linear Problem,
SNU Quantum Information Science (SQuIS) Group Workshop, Department of Physics, Seoul National University (SNU), Seoul, Korea (2023. 01. 30)
65. Non-Hermitian Systems and Quantum Information Science,
Quantum Information Seminar, Department of Physics, Kyungpook National University (KNU), Daegu, Korea (2023. 01. 16) [Online]
64. Fundamental Limits of Post-Quantum Cryptography,
KNU QI Seminar, Division of Liberal Studies, Kangwon National University (KNU), Korea (2022. 12. 21) [Online]
63. Fundamental Limits of Lattice-based Digital Cryptography,
ETRI Internal Workshop, Electronics and Telecommunications Research Institute (ETRI), Muju Deogyusan Resort, Korea (2022. 12. 20)
62. Quantum Teleportation of Entanglement,
Korea Institute of Science and Technology Information (KISTI), Seoul, Korea (2022. 10. 14)
61. Fundamental Limitations of Noisy Linear Problem,
Quantum Information Seminar, Department of Physics, Kyungpook National University (KNU), Daegu, Korea (2022. 08. 16)
60. Beyond Quantum Channel Capacity Problems: The Quantum Internet,
Korea Institute of Science and Technology Information (KISTI), Daejeon, Korea (2022. 08. 10)
59. PQC 기반문제와 양자알고리즘,
CISC-S'22, Korea Institute of Information Security & Cryptology, BEXCO, Busan, Korea (2022. 06. 16)
58. Quantum Renyi Entropy Power Inequality,
Quantum Information Seminar, Department of Physics, Hanyang University (HYU), Seoul, Korea (2022. 04. 19) [Online]
57. Foundations of Quantum Computing,
Seminar at Department of Computer Science, Hanyang University, Seoul, Korea (2022. 02. 15) [Online]
56. Quantum Renyi Entropy Functionals for Bosonic Gaussian Systems,
QI Seminar, School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea (2021. 12. 06)
55. On Quantum Renyi Entropy Functionals,
Seminar at Electrical Engineering, KAIST, Daejeon, Korea (2021. 11. 24) [Online]
54. Fundamentals of Quantum Computing,
Seminar at Electronic and Electrical Engineering, Sungkyunkwan University (SKKU), Suwon, Korea (2021. 11. 17)
53. Fundamentals of Quantum Channel Capacity,
Quantum Optics Lab Seminar, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea (2021. 11. 01)
52. Mystery of the Quantum Channel Capacity,
QI Seminar, School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea (2021. 08. 03) [Online]
51. Quantum Computer: Who are you?
Quantum R&E project seminar, Chungnam Science High School (CNSH), Konju, Korea (2021. 06. 09)
금요일에 과학터치, National Research Foundation of Korea (NRF), Seoul, Korea (2021. 05. 28)
49. Universal bounds on Gaussian channel capacities,
Quantum Information Seminar, Department of Physics, Kyungpook National University (KNU), Daegu, Korea (2021. 04)
48. Upper Bounds for Gaussian Quantum Channel Capacity,
Quantum Information (KHUQI) Seminar, Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea (2021. 02) [Online]
47. On high-dimensional private quantum channels and regular polytopes,
Quantum Information seminar, Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea (2021. 01) [Online]
46. On Upper Bounds for Quantum Communication Capacity,
7th QuIST Workshop, Korea University (KU), Seoul, Korea (2020. 12) [Online]
45. Toward quantum machine learnings from quantum randomizing maps,
KAIST Symposium on QML, KAIST, Daejeon, Korea (2020. 12) [Online]
44. Fundamental Principles in Quantum Information Science and Our Universe,
Job-Searching Lecture, Department of Applied Mathematics, Kyung Hee University (KHU), Korea (2020. 11) [Online]
43. Quantum Channel Capacity Problem and Quantum Algorithms,
ICQC 2020: International Conference on Quantum Computing 2020, QuIST, Seoul, Korea (2020. 08) [Online]
42. Fundamental Principles in Quantum Information Science,
Quantum R&E project seminar, Chungnam Science High School (CNSH), Konju, Korea (2020. 08)
41. Research directions on non-hermitian quantum systems,
QI Seminar, School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea (2020. 04)
40. Port-based controlled teleportation and its control power,
Quantum Information (KHUQI) Seminar, Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea (2020. 01)
39. On Variants of Quantum Teleportation: PBCT,
QIT group, School of Electric Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea (2019. 12)
38. Generalized port-based controlled teleportation and its control power,
Quantum Information Seminar, School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea (2019. 12)
37. Minimal control power of the controlled quantum port-based teleportation,
Quantum Information Seminar, School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea (2019. 11)
36. Quantum-channel-capacity bounds through Quantum EPI,
QIT group, School of Electric Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea (2019. 10)
35. Quantum channel capacity bounds through QEPI for bosonic Gaussian-noise channels,
International Centre for Theory of Quantum Technologies (ICTQT), University of Gdansk, Gdansk, Poland (2019)
34. Quantum Channel Capacity Bounds Through QEPI for Bosonic Gaussian-noise Channels,
Quantum Information Seminar, Department of Physics, Hanyang University (HYU), Seoul, Korea (2019)
33. Two Basic Principles in Quantum Information Science,
Quantum R&E project seminar (2019), Chungnam Science High School (CNSH), Konju, Korea
32. Additivity problem of Gaussian channels,
Quantum Information Seminar (2019), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
31. On randomizing quantum techniques,
Quantum Information Seminar (2019), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
30. On Renyi entropy power inequality,
Quantum Information Seminar (2018), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
29. Two Basic Principles in Quantum Information Science,
Quantum R&E project seminar (2018), Chungnam Science High School (CNSH), Konju, Korea
28. Introduction to gaussian quantum information,
2018 IMDARC Joint Workshop with Department of Mathematics, Hokkaido University, Sapporo, Japan
27. Universal upper bounds for Gaussian information capacity,
Quantum Computation, Information, and Cryptography (QCIC) seminar (2018), Department of Mathematical Sciences, Seoul National University, Seoul, Korea
26. Strong upper bounds for Gaussian information capacity,
Quantum Information Seminar (2018), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
25. Introduction to conditional entropy power inequality for qudits,
Quantum Information Seminar (2017), Department of Applied Mathematics, Hanyang University (ERICA), Ansan, Korea
24. Introduction to Conditional EPI for Qudits and Beyond: part 1 & 2,
Quantum Computation, Information, and Cryptography (QCIC) seminar (2017), Department of Mathematical Sciences, Seoul National University, Seoul, Korea
23. Conditional Entropy Power Inequality for Qudits,
Quantum Information Seminar (2017), Department of Physics, Hanyang University (HYU), Seoul, Korea
22. Two Basic But Important Principles in Quantum Information Science,
Quantum project seminar (2017), Chungnam Science High School (CNSH), Konju, Korea
21. Introduction to conditional quantum EPI for d-level quantum systems,
Quantum Information Seminar (2017), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
20. Conditional quantum entropy power inequality for qudits,
Quantum Information Seminar (2017), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
19. Two Basic Principles in Quantum Information Theory,
Colloquium (2016. 11. 24), Department of Physics, Inha University, Incheon, Korea
18. Purification of Gaussian maximally mixed states and its application,
(Speaker: Dr. Youngrong Lim) Quantum Information Seminar (2016), School of Computational Sciences, Korea Institute for Advanced Study (KIAS), Seoul, Korea
17. Introduction to Classical Entropy Power Inequality (cEPI),
Quantum Information Seminar (2016), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
16. On Private Quantum Channels in Quantum Information Theory,
Quantum Information Seminar (2016), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
15. Introduction to private quantum channels (PQC) and entropy power inequality (EPI),
Center for Macroscophic Quantum Control Seminar (2015), Department of Physics & Astronomy, Seoul National University (SNU), Seoul, Korea
14. Private Quantum Channels In Quantum Information Theory,
2015 Quantum Forum (General meeting), University of Seoul (UoS), Seoul, Korea
13. Role of private quantum channels in QIT,
ETRI Quantum Innovative Research Center Seminar (2015), Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea
12. Main ingredients on additivity violation of classical capacity,
Quantum Information Seminar (2015), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
11. Additivity violation of classical capacity on quantum channels: Its meaning and ingredients,
Operator Algebras Seminar (2015), Department of Mathematical Sciences, Seoul National University (SNU), Korea
10. The reason why MMS is important,
Quantum Information Seminar (2015), Department of Physics, Hanyang University (HYU), Seoul, Korea
9. On perfect controlled teleportations,
Quantum Information Seminar (2015), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
8. Subentropy and some known results,
Quantum Information Seminar (2014), Department of Mathematics, Kyung Hee University (KHU), Seoul, Korea
7. On a hyperApple: Concentration of measure phenomena on hypersphere,
Quantum group in Science Program (2013), Texas A & M University at Qatar, Doha, Qatar
6. Quantum Dense Coding Capacity and Its Monogamy Relations on Continuous Variable Systems,
Quantum group in Science Program (2012), Texas A & M University at Qatar, Doha, Qatar
5. Short introduction to the additivity counterexamples on quantum channels,
2012 Hue-Inha Workshop on Theoretical Physics, Department of Physics, Inha University, Korea
4. Randomizing quantum states in Schatten p-norms,
Operator Algebras Seminar (2012), Department of Mathematical Sciences, Seoul National University (SNU), Korea
3. Randomizing quantum states in Schatten p-norms,
School of Computational Sciences seminar (2012), Korea Institute for Advanced Study (KIAS), Korea
2. Gaussian channel minimum entropy conjecture,
Quantum group in Science Program (2012), Texas A & M University at Qatar, Doha, Qatar
1. On Additivity Violations of Quantum Channel,
Quantum group in Science Program (2011), Texas A & M University at Qatar, Doha, Qatar
Contributed talks
27. Port-based entanglement teleportation via noisy resource states,
2024 KPS Spring Meeting, DCC, Deajeon, Korea
26. Research Trend in Quantum Teleportation Schemes,
2024 1st QISK Conference, BPEX, Busan, Korea
25. Quantum Robustness for the Noisy Linear Problem,
2023 KPS Spring Meeting, DCC, Deajeon, Korea
24. Quantum Renyi Entropy Power Inequality for Bosonic Gaussian Systems,
2023 OSK Winter Meeting, BEXCO, Busan, Korea
23. Noise-Tolerant Bernstein-Vazirani Quantum Algorithms,
2022 KSIAM Annual Meeting, Sono Calm, Jeju, Korea
22. Geometric Representation of Quantum Randomizing Maps on High-dimensional Quantum Systems,
(Speaker: Junseo Lee)
2022 OSK Winter Meeting, DCC, Deajeon, Korea
21. Quantum Renyi Entropy Power Inequalities for Bosonic Gaussian Systems,
2021 KSIAM Annual Meeting, BEXCO, Busan, Korea
20. Geometric Approach to Private Quantum Channels: High-dimensional cases and Regular Polytopes,
(Speaker: Junseo Lee)
2021 KPS Fall Meeting, Virtual Conference [Online]
19. Quantum Pi,
QST Seminar (2021), Seoul National University, Seoul, Korea [Online]
18. Shape of randomness,
QST Seminar (2020), Seoul National University, Seoul, Korea [Online]
17. A generalization of port-based teleportation and controlled teleportation capability,
2020 KMS Spring Meeting, Korea [Online]
16. Improvement of HE Schemes via QKD Protocols,
2019 Korea Supercomputing Conference / 2019 KREONET Workshop (KSC & KREONET 2019), The K-hotel, Seoul, Korea
15. Conditional quantum EPI for discrete quantum systems,
The 25th Conference on Optoelectronics and Optical Communications (COOC 2018), Exco, Daegu, Korea
14. Open quantum mechanics and Lamb shift in circular dielectric resonator,
(Speaker: Kyu-Won Park)
2016 Spring Meeting of the Korea Physical Society (KPS 2016), DCC, Daejeon, Korea
13. Minimal controller's power on the controlled teleportation,
KIAS internal seminar (2015), School of Computational Sciences, KIAS, Korea
12. Generalized Gaussian private quantum channels,
2015 Spring Meeting of the Korea Physical Society (KPS 2015), DCC, Daejeon, Korea
11. Gaussian private quantum channel with squeezed coherent states,
Asia-Pacific Conference & Workshop on Quantum Information Science 2014 (APCWQIS 2014), The 8th meeting, NCKU, Taiwan
10. On squeezed Gaussian private quantum channels,
2014 KSIAM Annual Meeting, ICC, Jeju, Korea
9. Continuous Variable Private Quantum Channel,
KIAS internal seminar (2014), School of Computational Sciences, KIAS, Korea
8. Multiparty secure sequential-transmission of quantum information,
Asia-Pacific Conference & Workshop on Quantum Information Science 2013 (APCWQIS 2013), The seventh meeting, KIAS, Korea
7. The meaning of quantum channel capacities in equivalence relations,
Quantum group in Science Program (2013), Texas A & M University at Qatar, Doha, Qatar
6. Consideration on a higher dimensional apple,
KIAS internal seminar (2013), School of Computational Sciences, KIAS, Korea
5. On the Communication Capacity: Revisit and Applications,
KIAS internal seminar (2012), School of Computational Sciences, KIAS, Korea
4. Several facts on dense coding capacity,
KIAS internal seminar (2012), School of Computational Sciences, KIAS, Korea
3. Randomizing quantum states in Schatten p-norms,
2012 Spring Meeting of the Korean Mathematical Society (KMS2012), Sookmyung Womens's University, Seoul, Korea
2. Sequential transmission of quantum information,
The Korean Mathematical Society Fall Meeting (KMS 2011), Kyungpook National University, Daegu, Korea
1. Monogamy equality in 2⊗2⊗d quantum systems,
The 8th Asian Conference on Quantum Information Science (AQIS 2008), KIAS, Seoul, Korea
Posters
33. Quantum Renyi entropy functionals for bosonic Gaussian systems,
13th International Conference on Quantum Cryptography (QCrypt 2023), UMD, Maryland, USA
32. Quantum Neural Network Approach to Measuring von Neumann Entropy,
18th Conference on The theory of Quantum Computation, Communication and Cryptography (TQC 2023), Univ. Aveiro, Aveiro, Portugal
31. Quantum Renyi Entropy Functionals for Bosonic Gaussian Systems,
27th Edition of the Central European Workshop on Quantum Optics (CEWQO 2023), Univ. Milan, Milan, Italy
30. Quantum Renyi entropy functionals for bosonic Gaussian systems,
17th Conference on The theory of Quantum Computation, Communication and Cryptography (TQC 2022), UIUC, Illinois, USA
29. Quantum Renyi Entropy Functionals for Bosonic Gaussian Systems,
25th Annual Conference on Quantum Information Processing (QIP 2022), Caltech, Pasadena, USA
28. Geometry of Random Unitary Channels in High-dimensional Quantum States,
25th Annual Conference on Quantum Information Processing (QIP 2022), Caltech, Pasadena, USA
27. Indicators of wavefunction (de)localisation for avoided crossings in an optical cavity,
2022 Optical Society of Korea Winter Meeting (OSK 2022), DCC, Daejeon, Korea
26. Upper bounds on the quantum capacity for non-Gaussian channels,
The 19th Asian Conference on Quantum Information Science (AQIS 2019), Seoul, Korea
25. New upper bounds on the quantum capacity for general attenuator and amplifier,
Mathematical Results in Quantum Physics (QMath 14), Aarhus, Danmark
24. New upper bounds on the quantum capacity for general attenuator and amplifier,
V International Conference on Quantum Technologies (ICQT 2019), Moscow, Russia
23. New Upper Bounds on the Quantum Capacity for General Attenuator and Amplifier,
Quantum Information Revolution: Impact to Foundations (QIRIF 2019), Vaxjo, Sweden
22. On universal upper bounds for Gaussian information capacity,
The 22th Workshop on Quantum Information Processing (QIP 2019), Boulder, USA
21. Strong upper bounds for Gaussian information capacity,
The International Conference on Quantum Computing (ICoQC 2018), Paris, France
20. Shannon entropy and avoided crossings in closed and open quantum billiards,
The 3rd International Conference on Nanophotonics and Micro/Nano Optics (NANOP 2018), Rome, Italy
19. Correspondence between maximally entangled states in discrete and Gaussian regimes,
The 18th Asian Conference on Quantum Information Science (AQIS 2018), Nagoya, Japan
18. Strong upper bounds for the classical capacity on Gaussian quantum channels,
The 26th International Conference on Atomic Physics (ICAP 2018), Barcelona, Spain
17. Conditional quantum entropy power inequality for d-level quantum systems,
The 13th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2018), UTS, Sydney, Australia
16. Conditional quantum entropy power inequality for qudits,
Int'l Conference on Squeezed States and Uncertainty Relations (ICSSUR 2017), Jeju, Korea
15. Minimal control power of the controlled dense coding,
The 20th Workshop on Quantum Information Processing (QIP 2017), Seattle, USA
14. On control power of the controlled teleportation,
Asia-Pacific Conference & Workshop on Quantum Information Science 2015
(APCWQIS 2015), The 9th meeting, The University of Auckland, New Zealand
13. Squeezed Gaussian private quantum channel,
The 14th Asian Conference on Quantum Information Science (AQIS 2014), Kyoto, Japan
12. Secure Sequential Transmission of Quantum Information,
The 13th Asian Conference on Quantum Information Science (AQIS 2013), Chennai, India
11. Randomizing method for quantum states in Schatten norms,
Horizons of Quantum Physics: from Foundations to Quantum-Enabled Technologies (2012), Taipei, Taiwan
10. Randomizing quantum states in Schatten p-norms,
The 11th International Conference on Quantum Communication, Measurement and Computing (QCMC 2012), Vienna University of Technology, Austria
9. Splitting-reconstruction and quantum state transfer of quantum information via approximate private quantum channel,
The 11th Asian Conference on Quantum Information Science (AQIS 2011), Pusan, Korea
8. Approximate quantum state sharing protocols,
The 14th Workshop on Quantum Information Processing (QIP 2011), Singapore
7. Quantum User Authentication for Multiparty Quantum Communications,
The 10th Asian Conference on Quantum Information Science (AQIS 2010), Tokyo, Japan
6. Local random unitary channel via small $\epsilon$-net construction,
7th NSI-NCRC Internal Workshop, Seoul National University at Suwon, Korea
5. Minimal concurrence of assistance and Mermin inequality on three-qubit pure states,
The 13th Workshop on Quantum Information Processing (QIP 2010), Zurich, Swiss
4. N-qubit bound entangled states violating M-setting Bell inequalities,
The 13th Workshop on Quantum Information Processing (QIP 2010), Zurich, Swiss
3. Multipartite bound entangled states violating multi-setting Bell inequalities,
The 9th Asian Conference on Quantum Information Science (AQIS 2009), Nanjing, China
2. Monogamy equality in 2⊗2⊗d quantum systems,
The 12th Workshop on Quantum Information Processing (QIP 2009), Santa Fe, USA
1. Monogamy equality in 2⊗2⊗d quantum systems,
The Ninth International Conference on Quantum Communication, Measurement and Computing (QCMC 2008), University of Calgary, Canada