Dr. Sayak Ray

Profile

Academic positionPost Doc
Research fieldsTheoretical Condensed Matter Physics
Keywords3. Floquet systems, 4. MBL & Thermalization of closed quantum systems, 5. Quantum Chaos, 1. Driven dissipative quantum system, 2. Ultracold Rydberg atoms
Honours and awards

2019: Humboldt Research Fellowship for postdoctoral researchers, Germany

2017: Invited visiting position at the Laboratory of Theoretical Physics and Statistical Models (LPTMS), Orsay, France

2010: Scholarship from the Innovation in Science Pursuit for Inspired Research (INSPIRE), sponsored by the Department of Science and Technology (DST), India

Current contact address

Host during sponsorship

Prof. Dr. Johann KrohaPhysikalisches Institut, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn
Start of initial sponsorship01/11/2020

Programme(s)

2019Humboldt Research Fellowship Programme for Postdocs

Publications (partial selection)

2022Ulli Pohl, Sayak Ray and Johann Kroha: Non-local correlation and entanglement of ultracold bosons in the two-dimensional Bose-Hubbard lattice at finite temperature. In: Ann. Phys. (Berlin), 2022, 2100581
2022Sayak Ray, Amichay Vardi and Doron Cohen: Quantum signatures in quench from chaos to superradiance. In: Phys. Rev. Lett., 128, 2022, 130604
2021Sudip Sinha, Sayak Ray and Subhasis Sinha: Fingerprint of chaos and quantum scars in kicked Dicke model: An out-of-time-order correlator study. In: J. Phys.: Condens. Matter, 33, 2021, 174005
2020Sayak Ray, Doron Cohen and Amichay Vardi: Chaos induced breakdown of Bose-Hubbard modeling. In: Phys. Rev. A, 101, 2020, 013624
2020Manali Malakar, Sayak Ray, Subhasis Sinha and Dilip Angom: Phases and collective modes of bosons in a triangular lattice at finite temperature: A cluster mean field study. In: Phys. Rev. B, 102, 2020, 184515
2020Sayak Ray, James R. Anglin and Amichay Vardi: Prethermalization with negative specific heat. In: Phys. Rev. E, 102, 2020, 052107
2019Sayak Ray, Subhasis Sinha and Diptiman Sen: Dynamics of quasiperiodically driven spin systems. In: Phys. Rev. E, 100, 2019, 052129
2019Xiaolong Deng, Sayak Ray, Subhasis Sinha, Georgy V. Shlyapnikov and Luis Santos: One-dimensional quasicrystals with power-law hopping. In: Phys. Rev. Lett., 123, 2019, 025301
2018Sayak Ray, Anandamohan Ghosh and Subhasis Sinha: Drive-induced delocalization in the Aubry-Andr\'e model. In: Phys. Rev. E (Rapid Communication), 97, 2018, 010101
2018Sayak Ray, Subhasis Sinha and Krishnendu Sengupta: Signature of Chaos and Delocalization in a Periodically Driven Many Body System An Out-of-Time-Order Correlation Study. In: Phys. Rev. A, 98, 2018, 053631
2017Sayak Ray, Bhaskar Mukherjee, Subhasis Sinha and Krishnendu Sengupta: Bosons with incommensurate potential and spin-orbit coupling. In: Phys. Rev. A, 96, 2017, 023607
2016Sayak Ray, Mohit Pandey, Anandamohan Ghosh and Subhasis Sinha: Localization of weakly interacting Bose gas in quasiperiodic potential. In: New J. Phys., 18, 2016, 013013
2016Sayak Ray, Subhasis Sinha and Krishnendu Sengupta: Phases, collective modes, and nonequilibrium dynamics of dissipative Rydberg atoms. In: Phys. Rev. A, 93, 2016, 033627
2016Sayak Ray, Anandamohan Ghosh, and Subhasis Sinha: Quantum signature of chaos and thermalization in the kicked Dicke model. In: Phys. Rev. E, 94, 2016, 032103
2014Arunesh Roy, Sayak Ray and Subhasis Sinha: Effect of spin-orbit interaction on the critical temperature of an ideal Bose gas. In: Eur. Phys. J. D, 68, 2014, 376