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Time-periodically driven systems are a versatile toolbox for realizing interesting effective Hamiltonians. Heating, caused by excitations to high-energy states, is a challenge for experiments. While most setups address the relatively…

量子气体 · 物理学 2018-04-10 Tao Qin , Walter Hofstetter

We study the current response of an AC driven dissipative Mott insulator system, a normal quantum dot array, using an analytical Keldysh field theory approach. Deep in the Mott insulator regime, the nonequilibrium steady state (NESS)…

强关联电子 · 物理学 2021-01-04 Sanjeev Kumar , Vikram Tripathi

Photodoped states are widely observed in laser-excited Mott insulators, in which charge excitations are quickly created and can exist beyond the duration of the external driving. Despite the fruitful experimental explorations, theoretical…

强关联电子 · 物理学 2021-01-27 Jiajun Li , Martin Eckstein

Three-dimensional Weyl materials provide a controlled setting for exploring Floquet dynamics in open quantum systems, including nonequilibrium steady states (NESS). Motivated by the desire for a strongly-coupled description, we employ…

高能物理 - 理论 · 物理学 2026-02-26 Matteo Baggioli , Sebastian Grieninger , James Stokes

In this work, we explore the possibility of emergent nonequilibrium steady states arising from the electric-field-driven Mott insulator via the Keldysh-Floquet dynamical mean field theory (DMFT), which can determine the fully-interacting,…

强关联电子 · 物理学 2014-07-01 Woo-Ram Lee , Kwon Park

Periodic driving is used to steer physical systems to unique stationary states or nonequilibrium steady states (NESS), producing enhanced properties inaccessible to non-driven systems. For open quantum systems, characterizing the NESS is…

量子物理 · 物理学 2026-01-13 Milan Šindelka , David Gelbwaser-Klimovsky

With the aim to reveal universal features of hadronic matter and correlated Dirac insulators in strong AC-electric fields, we study the $\mathcal{N}=2$ supersymmetric QCD with a finite quark mass driven by a rotating electric field…

高能物理 - 理论 · 物理学 2018-08-01 Shunichiro Kinoshita , Keiju Murata , Takashi Oka

Understanding strongly correlated systems driven out of equilibrium is a challenging task necessitating the simultaneous treatment of quantum mechanics,dynamical constraints and strong interactions. A Mott insulator subjected to a uniform…

强关联电子 · 物理学 2019-06-17 Sarath Sankar , Vikram Tripathi

In order to investigate photoinduced insulator-metal transitions observed in correlated electron systems, we propose a new theoretical method, where we combine a Floquet-matrix method for AC-driven systems with the dynamical mean-field…

强关联电子 · 物理学 2015-05-13 Naoto Tsuji , Takashi Oka , Hideo Aoki

Laser technology has developed and accelerated photo-induced nonequilibrium physics from both scientific and engineering viewpoints. The Floquet engineering, i.e., controlling material properties and functionalities by time-periodic drives,…

统计力学 · 物理学 2020-07-07 Tatsuhiko N. Ikeda , Masahiro Sato

We perform a systematic analysis of the influence of phonon driving on the superconducting Holstein model coupled to heat baths by studying both the transient dynamics and the nonequilibrium steady state (NESS) in the weak and strong…

超导电性 · 物理学 2017-07-26 Yuta Murakami , Naoto Tsuji , Martin Eckstein , Philipp Werner

We study the tunneling dynamics in a time-periodically modulated two-mode Bose-Hubbard model using Floquet theory. We consider situations where the system is in the self-trapping regime and either the tunneling amplitude, the interaction…

量子气体 · 物理学 2012-05-22 Gentaro Watanabe , Harri Mäkelä

A Bose-Einstein condensate in a modulated, one-dimensional, anharmonic potential can exhibit dynamical tunneling between islands of regular motion in phase space. With increasingly repulsive atomic interactions, dynamical tunneling is…

量子气体 · 物理学 2024-09-10 Sebastian Wüster , Joy Cree , Matthew J. Davis

We study the nonequilibrium steady state of a Mott insulator coupled to a thermostat and driven by a constant electric field, starting from weak fields, until the dielectric breakdown, and beyond. We find that the conventional Zener picture…

强关联电子 · 物理学 2015-03-20 Camille Aron

Floquet states can be realized in quantum systems driven by continuous time-periodic perturbations. It is known that a state known as the Floquet Weyl semimetal can be realized when free Dirac fermions are placed in a rotating electric…

高能物理 - 理论 · 物理学 2017-08-23 Koji Hashimoto , Shunichiro Kinoshita , Keiju Murata , Takashi Oka

We formulate a comprehensive theoretical description of excitation harvesting in molecular aggregates photoexcited by weak incoherent radiation. An efficient numerical scheme that respects the continuity equation for excitation fluxes is…

化学物理 · 物理学 2021-01-01 Veljko Janković , Tomáš Mančal

The dynamics of electrons in ac driven double quantum dots have been extensively analyzed by means of Floquet theory. In these systems, coherent destruction of tunneling has been shown to occur for certain ac field parameters. In the…

介观与纳米尺度物理 · 物理学 2015-05-27 J Villavicencio , I Maldonado , E Cota , G Platero , .

Constructing a thermodynamic framework for nonequilibrium systems remains a major challenge, as quantities such as temperature and free energy often become ambiguous when inferred solely from steady-state properties. Here we take a…

We calculate the non-equilibrium electronic transport properties of a one-dimensional interacting chain at half filling, coupled to non-interacting leads. The interacting chain is initially in a Mott insulator state that is driven out of…

Considering light-mediated long-range interactions between cold atoms in a magneto-optical trap (MOT), we present numerical evidence of a nonequilibrium steady state (NESS) for sufficiently large number of atoms (> 10^8). This state…

原子物理 · 物理学 2022-12-20 Marius Gaudesius , Yong-Chang Zhang , Thomas Pohl , Guillaume Labeyrie , Robin Kaiser
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