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Unquenched—a memoir on non-equilibrium dynamics of quantum many-body systems: honoring Amit Dutta

Author

Listed:
  • Shraddha Sharma

    (National Institute of Technology Rourkela)

  • Tanay Nag

    (BITS Pilani-Hyderabad Campus)

  • Atanu Rajak

    (Indian Institute of Technology)

  • Souvik Bandyopadhyay

    (Boston University)

  • Sourav Bhattacharjee

    (The Barcelona Institute of Science and Technology)

  • Somnath Maity

    (RIKEN Cluster for Pioneering Research (CPR))

  • Utso Bhattacharya

    (The Barcelona Institute of Science and Technology
    Institute for Theoretical Physics, ETH Zurich)

Abstract

This short review explores the physics journey of Professor Amit Dutta, illuminating his collaborative contributions with students and peers. We mainly focus on standard approaches to understanding non-equilibrium quantum dynamics and ground-state criticality using quantum informatic measures like ground-state fidelity, the Loschmidt echo and/or the decoherence factor. Using Floquet theory as a tool, we also discuss the dynamics of hard-core bosonic chain, shedding light on the phenomenon of dynamical localization and different analytically approachable limits of Floquet theory. The review further extends to probe the physics of topological phase transitions in driven/quenched systems, where we mainly focus on the non-equilibrium response of topological systems and topological state preparation. Finally, we also discuss late-time quantum dynamics leading to the thermalization of open and closed systems, where we review contemporary approaches to the applicability of thermodynamic principles in microscopic quantum systems and the macroscopic emergence of statistical mechanics in driven/quenched ergodic systems. Throughout this memoir, Professor Amit Dutta’s important scientific contributions are mentioned for their impact on advancing our understanding of quantum dynamics and statistical mechanics. Graphic abstract

Suggested Citation

  • Shraddha Sharma & Tanay Nag & Atanu Rajak & Souvik Bandyopadhyay & Sourav Bhattacharjee & Somnath Maity & Utso Bhattacharya, 2024. "Unquenched—a memoir on non-equilibrium dynamics of quantum many-body systems: honoring Amit Dutta," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(7), pages 1-16, July.
    • Handle: RePEc:spr:eurphb:v:97:y:2024:i:7:d:10.1140_epjb_s10051-024-00740-1
    DOI: 10.1140/epjb/s10051-024-00740-1
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    References listed on IDEAS

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    1. Marcos Rigol & Vanja Dunjko & Maxim Olshanii, 2008. "Thermalization and its mechanism for generic isolated quantum systems," Nature, Nature, vol. 452(7189), pages 854-858, April.
    2. Sourav Bhattacharjee & Amit Dutta, 2021. "Quantum thermal machines and batteries," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 94(12), pages 1-42, December.
    3. Luca D’Alessio & Marcos Rigol, 2015. "Dynamical preparation of Floquet Chern insulators," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
    4. Toshiya Kinoshita & Trevor Wenger & David S. Weiss, 2006. "A quantum Newton's cradle," Nature, Nature, vol. 440(7086), pages 900-903, April.
    5. A. Dutta & J.K. Bhattacharjee & B.K. Chakrabarti, 1998. "Quantum rotors with regular frustration and the quantum Lifshitz point," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 3(1), pages 97-103, May.
    6. K. Ghosh & A. Dutta & J.K. Bhattacharjee, 1998. "Field theoretical calculation of the specific heat exponent for a classical N-vector model in a random external field," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 4(2), pages 219-221, July.
    7. Aavishkar Patel & Shraddha Sharma & Amit Dutta, 2013. "Quench dynamics of edge states in 2-D topological insulator ribbons," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 86(9), pages 1-6, September.
    8. Sourav Bhattacharjee & Souvik Bandyopadhyay & Anatoli Polkovnikov, 2024. "Sharp detection of the onset of Floquet heating using eigenstate sensitivity," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(10), pages 1-15, October.
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