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Floquet engineering, the control of a quantum system by means of time-periodic driving, allows to modify the properties of the system so that it becomes described by an approximate effective time-independent Hamiltonian. However, in the…

量子气体 · 物理学 2026-04-03 Lorenz Wanckel , André Eckardt

The long-time dynamics of quantum systems, typically, but not always, results in a thermal steady state. The microscopic processes that lead to or circumvent this fate are of interest, since everyday experience tells us that not all spatial…

统计力学 · 物理学 2024-05-13 Ken K. W. Ma , Hitesh J. Changlani

Heating effects in Floquet engineered system are detrimental to the control of physical properties. In this work, we show that the heating of periodically driven strongly correlated systems can be suppressed by multi-color driving, i.e., by…

强关联电子 · 物理学 2023-08-04 Yuta Murakami , Michael Schüler , Ryotaro Arita , Philipp Werner

We investigate the second quantization form of the entanglement Hamiltonian (EH) of various subregions for the ground-state of several interacting lattice fermions and spin models. The relation between the EH and the model Hamiltonian…

强关联电子 · 物理学 2021-03-11 Mahdieh Pourjafarabadi , Hanieh Najafzadeh , Mohammad-Sadegh Vaezi , Abolhassan Vaezi

We investigate the thermalization of a stochastic system with discrete phase space, initially at equilibrium at temperature $T_i$ and then termalizing in an environment at temperature $T_f$ , considering both cases $T_i > T_f$ and $T_i <…

统计力学 · 物理学 2025-08-05 A. Imparato

We study the recent Floquet-realisation of the Harper-Hofstadter model in a gas of cold bosonic atoms. We study in detail the scattering processes in this system in the weakly interacting regime due to the interplay of particle interactions…

量子气体 · 物理学 2015-06-17 Thomas Bilitewski , Nigel R. Cooper

We present a method for simulating any non-interacting and time-periodic tight-binding Hamiltonian in Fourier space using electric circuits made of inductors and capacitors. We first map the time-periodic Hamiltonian to a Floquet…

介观与纳米尺度物理 · 物理学 2023-12-06 S. Sajad Dabiri , H. Cheraghchi

We derive effective Floquet Hamiltonians for twisted bilayer graphene driven by circularly polarized light in two different regimes beyond the weak-drive, high frequency regime. First, we consider a driving protocol relevant for experiments…

介观与纳米尺度物理 · 物理学 2020-07-01 Michael Vogl , Martin Rodriguez-Vega , Gregory A. Fiete

We study the long-time behaviour and the spatial correlations of a simple ferromagnetic spin system whose kinetics is governed by a thermal bath with a time-dependent temperature which is characterized by a given external relaxation time…

统计力学 · 物理学 2008-11-26 Alan Picone , Malte Henkel , Jean Richert

We propose a general method of cooling -- periodic driving generated by spatially deformed Hamiltonians -- and study it in general one-dimensional quantum critical systems described by a conformal field theory. Our protocol is able to…

强关联电子 · 物理学 2022-11-02 Xueda Wen , Ruihua Fan , Ashvin Vishwanath

We study the heating dynamics of a generic one dimensional critical system when driven quasiperiodically. Specifically, we consider a Fibonacci drive sequence comprising the Hamiltonian of uniform conformal field theory (CFT) describing…

Given a $generic$ two-dimensional conformal field theory (CFT), we propose an analytically solvable setup to study the Floquet dynamics of the CFT, i.e., the dynamics of a CFT subject to a periodic driving. A complete phase diagram in the…

强关联电子 · 物理学 2018-05-23 Xueda Wen , Jie-Qiang Wu

We drive periodically a two-dimensional diamond-octagon lattice model by switching between two Hamiltonian corresponding two different magnetic flux piercing through diamond plaquette to investigate the generation of topological flat bands.…

统计力学 · 物理学 2021-10-18 Tanay Nag , Atanu Rajak

Periodically driven quantum systems can host non-equilibrium phenomena without static analogs, including in their entanglement dynamics. Here, we discover $temporal$ $entanglement$ $transitions$ (TET) in a Floquet spin chain, which…

量子物理 · 物理学 2026-03-13 Karun Gadge , Abhinav Prem , Rishabh Jha

When a chaotic, ergodic Hamiltonian system with $N$ degrees of freedom is subject to sufficiently rapid periodic driving, its energy evolves diffusively. We derive a Fokker-Planck equation that governs the evolution of the system's…

统计力学 · 物理学 2021-03-01 Wade Hodson , Christopher Jarzynski

We construct a Hamiltonian whose dynamics simulate the dynamics of every other Hamiltonian up to exponentially long times in the system size. The Hamiltonian is time-independent, local, one-dimensional, and translation invariant. As a…

量子物理 · 物理学 2017-10-26 Thomas C. Bohdanowicz , Fernando G. S. L. Brandão

We discuss the effect of dissipation on heating which occurs in periodically driven quantum many body systems. We especially focus on a periodically driven Bose-Hubbard model coupled to an energy and particle reservoir. Without dissipation,…

统计力学 · 物理学 2017-04-21 Koudai Iwahori , Norio Kawakami

We study probability distribution of a steady state of a periodically driven system coupled to a thermal bath by using a quantum master equation in the weak coupling limit. It is proved that, even when the external field is strong, the…

统计力学 · 物理学 2015-03-11 Tatsuhiko Shirai , Takashi Mori , Seiji Miyashita

We study dynamics of isolated quantum many-body systems under periodic driving. We consider a driving protocol in which the Hamiltonian is switched between two different operators periodically in time. The eigenvalue problem of the…

无序系统与神经网络 · 物理学 2015-01-05 Pedro Ponte , Anushya Chandran , Z. Papić , Dmitry A. Abanin

We propose a method to study the time evolution of correlated electrons driven by an harmonic perturbation. Combining Floquet formalism to include the time-dependent field and Cluster Perturbation Theory to solve the many-body problem in…

强关联电子 · 物理学 2016-10-19 M. Puviani , F. Manghi