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Energy current cumulants in one-dimensional systems in equilibrium
Abhishek Dhar, Keiji Saito, Anjan Roy
Recently a remarkable connection has been proposed between the fluctuating hydrodynamic equations of a one-dimensional fluid and the Kardar-Parizi-Zhang (KPZ) equation for interfac…
Rigorous Bound on Energy Absorption and Generic Relaxation in Periodically Driven Quantum Systems
Takashi Mori, Tomotaka Kuwahara, Keiji Saito
We discuss the universal nature of relaxation in isolated many-body quantum systems subjected to global and strong periodic driving. Our rigorous Floquet analysis shows that the en…
Floquet-Magnus Theory and Generic Transient Dynamics in Periodically Driven Many-Body Quantum Systems
Tomotaka Kuwahara, Takashi Mori, Keiji Saito
This work explores a fundamental dynamical structure for a wide range of many-body quantum systems under periodic driving. Generically, in the thermodynamic limit, such systems are…
Thermodynamics of Micro- and Nano-Systems Driven by Periodic Temperature Variations
Kay Brandner, Keiji Saito, Udo Seifert
We introduce a general framework for analyzing the thermodynamics of small systems that are driven by both a periodic temperature variation and some external parameter modulating t…
Waiting for rare entropic fluctuations
Keiji Saito, Abhishek Dhar
Non-equilibrium fluctuations of various stochastic variables, such as work and entropy production, have been widely discussed recently in the context of large deviations, cumulants…