Current Research Interest:                                                                                                                      

Bose-Einstein condensates, Matter-wave solitons, Optical lattice, Spin-orbit coupling;

Nonlinear Optics;                                                  

Past and present Positions                                                                                                                                                                    

• 2005 - 2011     Ph. D                                         Visva-Bharati University, India

• 2011 - 2012      Post Doctoral Fellow       Università degli Studi di Salerno, Italy

• 2012 - 2013     Post Doctoral Fellow       Institute of Physics Belgrade, Belgrade, Serbia

• 2013 - 2014     Assistant Professor         Department of Physics, University of Kashmir, India

• 2014- 2015      Post Doctoral  Fellow      INFN, University of Bari, Italy

• 2015 - 2017     Assistant Professor          Department of Physics, University of Kashmir, India

• 2017 - 2018     Assistant professor          UG and PG Department of Physics, B.B. College, India

• 2018 -             Assistant professor           Department of Physics, Kazi Nazrul University, India

Awards or Fellowships won:                                                                                                                                                     

1. National Eligibility Test for Lectureship and Junior  Research Fellowship, UGC, INDIA

2.   Dr D S Kothari Post Doctoral Fellowship, UGC, India

3.  Young Scientist Fellowship, DST, India

4.  INFN Postdoc Fellowship, INFN, Italy

Sponsored Projects 

Title of project: Spin-orbit coupled Bose-Einstein condensates in optical lattices

Funding agency: Science & Engineering Research Board (SERB)

Project File No. : CRG/2019/000737

Sanction amount for the Project:  6,96,476/-

Duration: 3.5 Years (19-02-2020 to 18-08-2023)

Status: Completed

Research paper publications:                                                                                                                                                            

• 1. Sumaita Sultana, Sk. Siddik and Golam Ali Sekh, Dynamics of bright solitons in spin-orbit coupled Bose-Einstein condensates under the influence of optical and Rabi-coupling lattices, Int. J. Mod. Phys. B (2025).

  2. Sumaita Sultana and Golam Ali Sekh, Josephson effect and self-trapping in helicoidal spin-orbit coupled Bose-Einstein condensates with optical lattices, Phys. Scr. (2025)

  3. Sk. Siddik and Golam Ali Sekh, Dynamics of quantum droplets falling under gravity on a reflector, Physics Letters A(2025). 

  4. Golam Ali Sekh, Spin mixing dynamics in helicoidal spin-orbit coupled Bose-Einstein condensates, J. Low. Temp. Phys. (2024). 

  5. Sk. Siddik and Golam Ali Sekh, Information theoretic measures on quantum droplets in ultracold atomic systems, Physica Scripta (2024).

  6. Kajal Krishna Dey and Golam Ali Sekh, Effective spin dynamics of spin-orbit coupled matter-wave solitons in optical lattices, Communications in Theoretical Physics(2024) 

  7. Golam Ali Sekh, Scattering of bright solitons due to defects in binary Bose-Einstein condensates with nonlinear optical lattices, Annalen der Physik (2024),DOI: 10.1002/andp.202300522 

  8. Golam Ali Sekh, Benoy Talukdar, Compressing the atomic cloud in a matter-wave stripe soliton, Physica Scripta  99,  025604 (2023).

  9. Sk. Siddik and Golam Ali Sekh, Quantum droplets in Bose-Einstein condensates, Sci. and Cult. 89, 383 (2023). 

  10. Bijan Layek, Sk. Siddik and Golam Ali Sekh, Fisher information on the phase transition from regular to flat top optical pulse in cubic-quintic nonlinear media, Brazilian J. Physics (2023).

  11. B. Talukdar, S. Chatterjee and Golam Ali Sekh, Schwarzian derivative in higher-order Riccati equations, Pramana: J. Phys. 187, 97(2023).

  12. Sumaita Sultana and Golam Ali Sekh, Josephson-type oscillations in spin-orbit coupled Bose-Einstein condensates with nonlinear optical lattices   Phys. Lett. A  (2023)

  13. K. K. Ismailov, G. A. Sekh, M. Salerno, Dynamical self-trapping of two-dimensional binary solitons in cross-combined linear and nonlinear optical lattices, Phys. Rev. E (2023)

  14. Bijan Layek, Sumaita Sultana and Golam Ali Sekh, Information measures on matter-wave solitons in Bose-Einstein condensates , Canadian J. Phys. (2023), http://dx.doi.org/10.1139/cjp-2022-0221

  15. Sudipta Das and Golam Ali Sekh, Effects of dispersion and saturable nonlinearity on dissipative solitons, Das et al 2023 Jpn. J. Appl. Phys. https://doi.org/10.35848/1347-4065/aca857 .

  16. Sudipta Das and Golam Ali Sekh, Stability of binary solitons in optical fibers with cubic-quintic cross-phase modulation, Acta Physica Polonica A Vol 142, No. 4 (2022) http://dx.doi.org/10.12693/APhysPolA.142.450. 

  17. Golam Ali Sekh, B. Talukdar, S. Chatterjee, and B. A. Khan, Information theoretic approach to effects of spin-orbit coupling in quasi-one-dimensional Bose-Einstein condensates,  Physica Scripta (2022). https://doi.org/10.1088/1402-4896/ac9933

  18. Kajal Krishna Dey and Golam Ali Sekh, Coupled matter-wave solitons on oscillating reflectors under the effects of gravity, Chaos 32, 083149 (2022); https://doi.org/10.1063/5.0096721 

  19. B. A. Khan, S. Chatterjee, Sekh Golam Ali, B. Talukdar, Integrable systems: From inverse spectral transform to zero curvature condition, Lat. Am. J. Phys. Educ. 16, 1601(2022), http://www.lajpe.org/mar22/16_1_16.pdf

  20. Golam Ali Sekh and Benoy Talukdar, Effects of optical lattices on bright solitons in spin-orbit coupled Bose-Einstein condensates, Physics Letters A  415, 127665(2021); https://doi.org/10.1016/j.physleta.2021.127665

  21. Sudipta Das, Kajal Krishna Dey and Golam Ali Sekh, Optical solitons in saturable cubic-quintic nonlinear media with nonlinear dispersion, Optik (2021); https://doi.org/10.1016/j.ijleo.2021.167865 

  22. Kajal Krishna Dey and Golam Ali Sekh, Effects of random excitations on the dynamical response of Duffing systems, Journal of Statistical Physics 182, 18 (2021).  https://doi.org/10.1007/s10955-020-02694-x 

  23. Sudipta Das and Golam Ali Sekh, Dynamics of compressed optical pulse in cubic-quintic media, Fiber & Integrated  Optics 39, 122(2020). https://doi.org/10.1080/01468030.2020.1800143

  24. Golam Ali Sekh, B. Talukdar and  Supriya Chatterjee, Insights from intracules and Coulomb holes, Eur. J. Phys.   41,  045403 (2020).  Insights from intracules and Coulomb holes - IOPscience 

  25. Supriya Chatterjee, Golam Ali Sekh and B. Talukdar, Fisher Information for the Morse Oscillator, Reports on Mathematical Physics  85,  281(2020). https://doi.org/10.1016/S0034-4877(20)30030-6

  26. Benoy Talukdar, Supriya Chatterjee and Golam Ali Sekh, On the analytic representation of Newtonian systems, Pramana- Journal of Physics 94, 141 (2020). https://doi.org/10.1007/s12043-020-02010-y 

  27. Golam Ali Sekh and Pallavi Kalikotay, Dynamics of self-reinforcing matter-wave in gravito-optical surface trap, Chaos 29, 103112 (2019). https://doi.org/10.1063/1.5116328 

  28. Kajal Krishna Dey, Sudipta Das and Golam Ali Sekh, On the information entropy of matter-waves in quasi-periodic lattice potentials, Eur.  Phys. J. D 73, 18 (2019).  https://doi.org/10.1140/epjd/e2018-90259-7 

  29. B. Talukdar, A. Saha, S. Chatterjee and Golam Ali Sekh, Entropic uncertainty relation and revival structure of quantum wave packets, Eur. Phys. J. Plus 133, 480 (2018); https://doi.org/10.1140/epjp/i2018-12277-5 

  30. Golam Ali Sekh, A. Saha and B. Talukdar, Shannon entropies and Fisher information of K-shell electrons of neutral atoms, Phys. Letts. A 382, 315(2018); https://doi.org/10.1016/j.physleta.2017.12.005

  31. Golam Ali Sekh, Bouncing dynamics of Bose-Einstein condensates under the effects of gravity, Phys. Letts.  A 381, 852(2016); https://doi.org/10.1016/j.physleta.2016.12.022

  32. Golam Ali Sekh, Francesco V. Pepe, Paolo Facchi, Saverio Pascazio, Mario Salerno, Split and overlapped binary solitons in optical lattices,  Phys. Rev. A 92,  013639(2015), https://doi.org/10.1103/PhysRevA.92.013639 

  33. Paolo Facchi, Saverio Pascazio, Francesco V. Pepe, Golam Ali Sekh, Typical observables in a two-mode Bose system, Phys. Rev. A 91 , 033637(2015), https://doi.org/10.1103/PhysRevA.91.033637 

  34. Sk. Golam Ali, S.K. Roy and B. Talukdar, Stability of matter-wave solitons in optical lattices, Eur. Phys. J. D 59, 269(2010) ; https://doi.org/10.1140/epjd/e2010-00146-0 

  35. Golam Ali Sekh and Mario Salerno, Aparna Saha and Benoy Talukdar, Displaced dynamics of binary mixtures in linear and nonlinear optical lattices, Phys. Rev. A 85, 023639 (2012); https://doi.org/10.1103/PhysRevA.85.023639 

  36. Golam Ali Sekh, Effects of spatially inhomogeneous atomic interactions on Bose–Einstein condensates in optical lattices, Phys. Letts. A 376, 1740(2012); https://doi.org/10.1016/j.physleta.2012.03.038

  37. Sk. Golam Ali, Debabrata Pal and B. Talukdar, Applications of variational calculus to coupled pulse propagation in an optical fiber, Czech. J. Phys. 56, 217 (2006)

  38. Sk. Golam Ali, S. K. Roy and B. Talukdar, Bright Soliton in Asymmetrically Trapped Bose-Einstein Condensates, Acta., Phys. Polo. A , 111, 289(2007)

  39. Sk. Golam Ali, S.K. Roy and B. Talukdar, Matter-Wave Bright Solitons of 7Li Gas in an Expulsive Potential, Acta. Phys. Polo. A 112, 1165 (2007)

  40. Sk. Golam Ali, B. Talukdar and U. Das, Inverse problem of variational calculus for nonlinear evolution equations, Acta Phys. Polo. B 38, 1993(2007)                                                                               

  41. D. Pal, Sk. Golam Ali and B. Talukdar, Embedded Soliton Solutions: A Variational Study, Acta. Phys. Polo. A 113, 707 (2008); 10.12693/APhysPolA.113.707 

  42. Sk. Golam Ali and B. Talukdar, Matter-wave bright solitons: Internal atomic recombination and external feeding, Eur. Phys. J. D 46, 46315(2008)

  43. Debabrata Pal, Sk. Golam Ali and B. Talukdar, Embedded solitons in the third-order nonlinear Schrodinger equation, Phys. Scr. 77, 065401 (2008) ; 10.1088/0031-8949/77/06/065401                      

  44. Sk. Golam Ali, B. Talukdar and Aparna Saha, Effects of three - body atomic interaction and optical lattice on solitons in quasi one - dimensional Bose-Einstein Condensates, Pramana : J. Phys. 72, 445(2009); https://doi.org/10.1007/s12043-009-0039-2 

  45. Sk. Golam Ali and B. Talukdar, Coupled matter-wave solitons in optical lattices, Ann. Phys. (NY) 324, 1185 (2009);https://doi.org/10.1016/j.aop.2009.03.004

  46. Debabrata Pal, Sk. Golam Ali and B. Talukdar, Evolution of optical pulses in the presence of third-order dispersion, Pramana : J. Physics 72, 939( 2009); https://doi.org/10.1007/s12043-009-0087-7 

  47. Debabrata Pal, Sk Golam Ali and B Talukdar, Stability of embedded solitons in higher-order NLS equations, Phys. Scripta  83, 025009 (2011) ; 10.1088/0031-8949/83/02/025009 .          

  48. Golam Ali Sekh, Matter-wave bright solitons in effective bichromatic lattice potentials, Pramana : J. Phys. 81, 261(2013);https://doi.org/10.1007/s12043-013-0571-y 

  49. Paolo Facchi, Hiromichi Nakazato, Saverio Pascazio, Francesco V. Pepe, Golam Ali Sekh, Kazuya Yuasa, Phase randomization and typicality in the interference of two condensates, Int. J. Quantum Inform. 12, 1560019 (2014); https://doi.org/10.1142/S0219749915600199 

Conference proceeding  publications:

1. Golam Ali Sekh and B. Talukdar, Satyendra Nath Bose: Quantum statistics to Bose-Einstein condensation, Moldavian Journal of the Physical Sciences, 22, 11 (2023) 

2. Kajal Krishna Dey and Golam Ali Sekh, Dynamics of a matter-wave soliton bouncing on a reflecting surface, Proceedings of International Conference on the “Recent Trends in Physics and Allied Sciences', ISBN: 978-93-89817-84-3,IIEP Page: 61-64 (2023), http://www.isca.co.in/SOUV_PROC/conference/ISBN%20978-93-89817-84-3.pdf

Ph.D. thesis completed:

1. Dr. Sudipta Das,

Thesis title:  Dynamics of optical pulses in higher-order nonlinear media

Date of defend:  07/08/2024 

Book Publications: 

1.Golam Ali Sekh, Matter-Wave Solitons in Bose-Einstein Condensates (ISBN: 978-620-6-75233-2), LAMBERT Academic Publishing(2023).

PG Courses   Taught                                                                                            

•  Mathematical Physics

• Classical Electrodynamics

• Numerical Methods

• Bose-Einstein condensates

• Super Conductivity

• Nuclear Physics

• Statistical Mechanics

• Atomic & Molecular Physics

• Quantum Computing and Cryptography

• Field theory for nonlinear systems (Ph.D coursework)

 UG Courses Taught                                                                                                                                                      

• Thermal Physics

• Wave Motion

• Physical Optics

• Vector Analysis

• Statistical Physics

Some Lecture Notes, M.Sc project and poster    :                                                                                                 

1. Bose-Einstein condensation : A Prelude 

2. Finite Bose systems : Trapping, cooling and imaging

3. Bose Einstein Condensation in External Traps 

4. Bose-Einstein condensates in disorder potential

(detail in the download)