

Research Areas 
 Theoretical Research on
Quantum Sensing,
BoseEinstein condensate,
Quantum Optics,
Quantum Computation

Courses taught at IIT P 
 B.Tech : PH101: PhysicsI, PH102: PhysicsII, PH103: Physics (T), PH001 & PH002: PhysicsPrep, EP201: Quantum Mechanics
M.Tech: PH504: Comp. Nanoscience, NT514: Topical Seminar, NT601 & 611: M.Tech Proj.I & II
M.Sc: PH421: Mathematical Physics, PH425: Quantum MechanicsI, PH521: Atomic & Molecular Physics, PH602: Quantum Optics & Quantum Information, PH603: Physics of Ultracold Atoms
PH.D.: PH701: Mathematical Physics, PH703: Quantum & Statistical Mechanics, PH709: Physics of Nonlinear Systems

Students 
Sr. No. 
Photo 
Area of Reasearch 
Degree 
1 
Burn Halder



2 
AQ Batin



3 
Vivek Mehta



4 
Pradosh Basu



5 
Sriganapathy Raghav



6 
Vicky Sau



7 
Jayashree Das



8 
Sonali Jana




Professional Experience 
 Associate Professor, Dept. of Physics, IIT Patna (Since Dec. 2015)
Assistant Professor, Dept. of Physics, IIT Patna (July, 2010  Dec. 2015)
NITHEP Post Doctoral Fellow, School of Phys., Center for Quantum Tech., UKZN(Westville Campus), Durban, SA (JanJune, 2010)
Post Doctoral Fellow, Quantum Opt. & Quantum Inf. Group, Univ. of Camerino, Italy. ( 20082010 )

Awards & Honours 
 Outstanding Teacher Award in Gold Category, "Science and Technology Academic, Innovations and Research Awards 2021".
Bharat Vikas Award, SubjectPhysics, ISRIndia, 2018.
There are 11 best paper/poster awards from the research group.

Member of Professional bodies 
 Review Editor in “Frontiers in Quantum Science and Technology, (www.frontiersin.org)”.
TCSCOIN partner for “Quantum Computation and Quantum Technology”, 2022.
Life member of Indian Society of Atomic and Molecular Physics.
Executive Committee Member, “Indian Society of Optics, Atomic & Molecular Physics”.
Member of the Editorial Boards: ‘Trends in Comp. Sc. & Tech. (EISSN: 26413086)’; ‘World Research Journal of Applied Physics’.
Reviewers of several International reputed peer reviewed journals.

Books 

Publications / Journals / Conferences 
Journal Publications:
 Tunnelling and Revival of Anderson Localization in BoseEinstein Condensate, Sriganapathy Raghav, Barun Halder, PradoshBasu and Utpal Roy, Accepted for publication, Phys. Rev. A (2022). [IF2.971]
 Generation of higher harmonics in dipolar BoseEinstein condensates trapped in periodicallymodulated potentials,J Bera, Abdul Q. Batin,S Ghosh, Boris Malomed and, Utpal Roy, Accepted for publication, Philos. Trans. R. Soc. A (2022). (A Royal Society, UK Publication). [IF4.019]
 Solitary Matter Waves in a Tunable Biperiodic Optical Lattice with Two and Threebody Interactions, Ajay Nath, JayantaBera; M R. Pathak and Utpal Roy, Acceptedfor publication, Eur. Phys. J. D (2022). [IF1.611]
 Quantum sensing with subPlanck structures for the dynamics of BoseEinstein condensate in presence of engineered potential barriers inside a harmonic trap, JayantaBera, Barun Halder, SuranjanaGhosh, RayKuang Lee and Utpal Roy, Phys. Letts. A, 453, 128484 (2022). [IF2.707]
 Quantum simulation of rogue waves in BoseEinstein condensate: An exact analytical method, Nilanjan Kundu, Suranjana Ghosh and Utpal Roy, Phys. Letts. A, 449, 128335 (2022).[IF2.707]
 Nonlinear Excitations in Ultracold Atoms Trapped in Triple Optical Lattices, PradoshBasu,Barun Halder,Sriganapathy Raghav and Utpal Roy, Condens. Matter, 7(3), 52 (2022).(Special Issue on Fluctuations and Highly Nonlinear Phenomena in Superfluids and Superconductors III). [IF2.25]
 Synergy between the negative absolute temperature and the external trap for a BoseEinstein condensate under optical lattices, Nilanjan Kundu, Ajay Nath, Jayanta Bera,Suranjana Ghosh and Utpal Roy, Phys. Letts. A, 427, 127922, (2022).[IF2.707]
 Exact Solutions for Solitary Waves in a BoseEinstein Condensate under the Action of a FourColor Optical Lattice, B Halder, S Ghosh, P Basu, JBera, BMalomed and Utpal Roy, Symmetry, 14(1), 49, (2022). [IF2.940]
 Exact Analytical Model for BoseEinstein Condensate at Negative Temperature, Ajay Nath, Jayanta Bera,Suranjana Ghosh and UtpalRoy,Scientific Reports, 10, 9016, (2020).[IF4.996]
 Matterwave fractional revivals in a ring waveguide, Jayanta Bera, Suranjana Ghosh, Luca Salasnich andUtpal Roy, Phys. Rev. A, 102, 063323, (2020).[IF2.971]
 Soliton dynamics for an ingenious trap combination in a BoseEinstein condensate, Ajay Nath, Jayanta Bera, Suranjana Ghosh, P.K. Panigrahi and, Utpal Roy, Eur. Phys. J. D 74, 27 (2020).[IF1.611]
 Subfourier quantum metrology through bright solitary trains in BoseEinstein condensate, Suranjana Ghosh, Jayanta Bera, P.K. Panigrahi and, Utpal Roy, Int. J. Quantum Inf., 17(02), 1950019 (2019).[IF0.979]
 Mesoscopic quantum superposition of the generalized cat state: A diffraction limit, Suranjana Ghosh, Raman Sharma, Utpal Roy and P.K. Panigrahi, Phys. Rev. A, 92, 053819 (2015).[IF2.971]
 A unified model for an external trap in a cigarshaped BoseEinstein condensate, Ajay Nath and, Utpal Roy, J. Phys. A: Math. Theor. 47 415301 (2014).[IF2.331]
 BoseEinstein condensate in a bichromatic optical lattice: An exact analytical model, Ajay Nath and, Utpal Roy, Laser Phys. Lett. 11 115501 (2014).(Selected IOP article for Free Access, Selected as Article of the year 2014). [IF2.016]
 Enhanced quantum sensitivity in a vibrating diatomic molecule due to a rotational amendment, Suranjana Ghosh andUtpal Roy, Phys. Rev. A 90, 022113 (2014).[IF2.971]
 Propagation of Spikes in Nonresonant Atomic Media: The Reduced MaxwellDuffing Model, Utpal Roy, T. S Raju, P. K. Panigrahi and A. Rai, J. Non. Math. Phys. 18, 491 (2011). [IF1.163]
 Gapped Solitons and Periodic Excitations in Strongly Coupled BoseEinstein condensate, Utpal Roy, B. Shah and K. Abhinav and P. K. Panigrahi, J. Phys. B 44, 035302 (2011). [IF1.917]
 Complex solitons in BoseEinstein condensates with two and threebody interactions, Utpal Roy, R. Atre, C. Sudheesh, C. N. Kumar, P. K. Panigrahi, J. Phys. B: At. Mol. Opt. Phys. 43, 025003 (2010). [IF1.917]
 Sinusoidal Excitations in Two Component BoseEinstein Condensates in a Trap, P. Das, T. S. Raju,Utpal Roy, P. K. Panigrahi, Phys Rev. A 79, 015601 (2009).[IF2.971]
 SubPlanck scale structures in a vibrating molecule in the presence of decoherence, S. Ghosh, Utpal Roy, C. Genes, and David Vitali, Phys. Rev. A 79, 052104 (2009).[IF2.971]
 SubPlanck scale structures in the PöschlTeller potential and their sensitivity to perturbations,Utpal Roy, S. Ghosh, P. K. Panigrahi, and David. Vitali, Phys. Rev. A 80, 052115 (2009).Selected in Physical Review Kaleidoscope of Nov. 09.[IF2.971]
 Some intricacies of the momentum operator in quantum mechanics,Utpal Roy, S. Ghosh and K. Bhattacharya, Rev. Mex. de Fisica 54, 160 (2008).[IF1.702]
 Soliton response to transient trap variations, S. SreeRanjani, Utpal Roy, P. K. Panigrahi, A. K. Kapoor, J. Phys. B 41, 235301 (2008).[IF1.917]
 Coherent state of the PöschlTeller potential and their revival dynamics,Utpal Roy, J. Banerji and P. K. Panigrahi, J. Phys. A 38, 9115 (2005). [IF2.132]

Invited Talks 
 Nobel Prize in Physics 2022: Quantum Entanglement & Quantum Technology, IAPT Convention, Patliputra Univ. Patna, 03 Dec, 2022.
 Effect of Trap Engineering in BoseEinstein Condensate and Quantum Information, YIMQCMT2022, NISER Bhubaneswar, Oct 29Nov 01, 2022.
 Quantum Simulation and Quantum Sensing with Trapped Ultracold Atoms, “TAMIONS”, International Center for Theoretical Studies, TIFR, Bengaluru, 913 May, 2022.
 Few Prominent Directions to Ultracold Atom Research in Presence of External Potential, Quantum Information & Quantum Technology2022, IISER Kolkata, 25^{th} June, 2022.
 From Quantum Simulation to Quantum Sensing for Ultracold Matter Waves, Annual International Conference on Laser Optics and Photonics, June 1012, 2022.
 Matter Waves in Tunable Optical Lattices for Quantum Simulation, Lecture Series in NLD, Bharathidasan Univ., Feb. 11, 2022.
 Fractional Revivals and Quantum Sensing for Trapped Ultracold Matter Waves, 2^{nd} Edition of European Lasers, Photonics and Optics Technologies Summit, Paris, Virtual, September 0506, 2022.
 2^{nd} Annual International Conference on Lasers, Optics, Photonics, Sensors & Ultrafast Nonlinear Optics, Virtual, June 1012, 2022.
 Quantum Simulation with Ultracold Atoms and Coupled, Disordered Optical Lattices, “Young Investigator Meet on Quantum Condensed Matter Theory,” NISER Bhubaneswar, India, Nov. 1619 (2021).
 Quantum Dynamics of Ultracold Atoms under Tunable Trap, Int. Webinar on Quantum Phys. and Nuclear Tech., Coalesce Research Group, USA, 27th July, 2021.
 Quantum Optics & Quantum Information: From Fundamentals to Applications, Victoria Inst., Univ. of Cal., India, 27th June, 2021.
 BoseEinstein Condensate: Quantum Simulation & Quantum Information, QIQT2021, IISER Kolkata, June 22, 2021.
 Quantum Simulation with Matter Waves in Engineered Optical Lattices, SuperFluctuations 2021, CamerinoPadovaItaly, June 1416, 2021.
 Quantum Simulation and Quantum Sensors of matter waves, Special webinar, PSG College of Arts and Science, Coimbatore, 20 February, 2021.
 Ultracold atoms in disordered optical superlattices, “Young Investigator Meet on Quantum Condensed Matter Theory,” NISER Bhubaneswar, 1518 December, 2020.
 Negative Temperature in Bichromatic Optical Lattice, 2nd International Conference on Laser Technology 2020, London, UK, September 2324, 2020.
 Quantum Precision Measurements in Trapped Ultracold Atoms, International Conference on Complex Quantum Systems (ICCQS2020), BARC, Mumbai, March 47, 2020.
 Ultracold Atom Dynamics in Frustrated Optical Lattices, International Meet: Young Investigators Meet on Quantum Condensed Matter, S. N Bose Center, Kolkata (Dec. 2327), 2019.
 Coherent Wavepackets of Light & Matter, International School on Quantum Information & Quantum Technology, IISER Kolkata (June07July 22), 2019.
 Advances of Quantum Technology, Refreshers course, IAPT, Patna University (May 27), 2019.
 Creation of mesoscopic superposition states in BoseEinstein condensate using tunneling and reflection, International Conference on Quantum & Atom Optics, IIT Patna, Dec 1618, 2018.
 BoseEintein Condensate in Frustrated Systems, Young Investigator Meet on Quantum Condensed Matter Theory, S. N. Bose National Centre for Basic Sciences, Kolkata, November 20 (2018).
 Condensate of Atom & Photon, RESPECTKV workshop for Kendriya Vidyalaya Physics Teachers, 1719th July 2018.
 Quantum Mechanics at the Coldest Temperature of the Universe, Workshop on the Centenary Celebration of Patna University, Title: 125th Birthanniversary Celebration of Prof. S.N. Bose, Patna University, April 20, 2018.
 Two Component BoseEinstein Condensate in a Bichromatic Optical Lattice, International Workshop on BoseEinstein Condensation and Related Phenomena (IWBECRP), S. N. Bose National Centre, Kolkata, March 2628 (2018).
 Interference of BoseEinstein Condensate in a Toroidal Trap, one day workshop on National Science Day Celebration & 125th Birth Anniversary of S. N. Bose, IIT Patna, 6th March (2018).
 Molecular isotope separation by utilizing SubPlanck scale structures, International conference on “Quantum & Nonlinear Optics Conference (QNO2018), Kuala Lumpur, Malaysia, Feb 25 (2018).
 Breathing Dynamics of Ultracold Atoms in a Vibrated Optical Lattice, Topical Conference07, Indian Society of Atomic & Molecular Physics, IISER Tirupati, Jan 68 (2018)
 Coherent Control of BoseEinstein condensate under external confinement, 21st National Conference on Atomic & Molecular Physics (NCAMP21), Physical Research Laboratory, Ahmedabad, Jan. 36, 2017.
 Trap Engineering in a CigarShaped BoseEinstein Condensate: Exact Analytical Approach, Frontiers in LightMatter Interaction, IIT Ropar, March 45, 2016.
 Condensed Ultracold Atoms: A Room for New Technology, National Workshop on ‘Physics Education: Issues, Challenges and Strategies, Dept of Physics, Magadh Mahila College, Patna University, January 3031, 2016.
 Cigarshaped BoseEinstein condensate under bichromatic optical lattices, 4th International conference on Current Development in Atomic, Molecular, Optical & Nano Physics with Applications, University of Delhi, March 1114, 2015.
 BoseEinstein condensate at negative temperature, International School and Discussion meeting on LightMatter interactions, International Centre for Theoretical Studies, Indian Academy of Cultivation of Sciences Kolkata, India on 0822 December, 2014.
 External Confinement: A key factor in the Dynamics of BoseEinstein condensate, International Seminar on Current Trend in Quantum Gases, BEC and Solitons, Panjab University, Chandigarh, March 36, 2014.
 Confining trap for a cigar shaped BoseEinstein condensate, International Conference on Recent trends in Computer and computational sciences (RETCOMP 2013), PES Institute of Technology, Bangalore, Jan 1113, 2013.
 Dynamics of cigar shaped BEC in time and space varying external trap, DAEBRNS symposium on Atomic, Molecular and Optical Physics, Indian Institute of Science Education and Research, Kolkata, Dec 1416, 2012.
 BoseEinstein Condensate & Control of Quantum Interferences, International School on Quantum & Nano Computing System & Application, Dayalbagh Educational University, Agra, Nov 30  Dec 02, 2012.
 Coherent control of solitons in quasi 1DBEC, 3nd International Conference on “Current Developments in Atomic, Molecular, Optical & Nano Physics” CDAMOP 2011, University of Delhi, December 1416, 2011.
 Faraday wave as a probe to BEC with various interactions, International Conference on Quantum Optics and Quantum Computing (ICQOQC11), Jaypee Institute of Information Technology, Noida, India, March 2426, 2011.
 Frontier of optics and atomic physics, HCUTIFR Discussion meeting, Hyderabad Central University, Hyderabad, India, July 13, 2011.
 Airy pulse in spontaneous parametric down conversion, Summer School on Scalable Quantum Computing with Light and Atoms (SCALA), Institut d’Optique, Corsica, France, August 1729, 2009.
 Complex Soliton in BEC with Two and Threebody interactions, International Conference on Cold Atoms (ICCA), Indian Institute of Science Education and Research (IISER)Kolkata, Kolkata, India, December 1621, 2008.
 Solitons in BoseEinstein condensate and other nonlinear media, Workshop at Department of Physics, University of Camerino, Italy, February 4, 2008.
 Solitons in strongly coupled cigarshaped BoseEinstein condensate, Int. Symp. on Quantum Optics, Physical Research Laboratory, Ahmedabad, India, July 2427, 2006.
 Dynamics of Bose Einstein condensates, weak and strong interactions, Workshop on Quantum Optics & Quantum Information, Physical Research Laboratory, Ahmedabad, India, March 16, 2006.
 Useful states for quantum computation from coherent States, International Workshop on Quantum Information, Computation and Communication (QICC 2005), Center for theoretical Studies, IIT Kharagpur, India, February 1518, 2005.
