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相关论文: Computation of current cumulants for small nonequi…

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We study the full counting statistics of current of large open systems through the application of random matrix theory to transition-rate matrices. We develop a method for calculating the ensemble-averaged current-cumulant generating…

统计力学 · 物理学 2014-01-31 Uliana Mordovina , Clive Emary

We consider stochastic and open quantum systems with a finite number of states, where a stochastic transition between two specific states is monitored by a detector. The long-time counting statistics of the observed realizations of the…

量子物理 · 物理学 2014-03-27 M. Bruderer , L. D. Contreras-Pulido , M. Thaller , L. Sironi , D. Obreschkow , M. B. Plenio

In many experimental situations, a physical system undergoes stochastic evolution which may be described via random maps between two compact spaces. In the current work, we study the applicability of large deviations theory to time-averaged…

统计力学 · 物理学 2015-05-13 Vladimir Y. Chernyak , Michael Chertkov , Sergey V. Malinin , Razvan Teodorescu

Anisotropic flow measurements in heavy-ion collisions provide important information on the properties of hot and dense matter. These measurements are based on analysis of azimuthal correlations and might be biased by contributions from…

核实验 · 物理学 2011-10-18 Ante Bilandzic , Raimond Snellings , Sergei Voloshin

Open system simulations of quantum transport provide a platform for the study of true steady states, Floquet states, and the role of temperature, time-dynamics, and fluctuations, among other physical processes. They are rapidly gaining…

量子物理 · 物理学 2021-02-23 Michael Zwolak

We derive a stochastic path integral representation of counting statistics in semi-classical systems. The formalism is introduced on the simple case of a single chaotic cavity with two quantum point contacts, and then further generalized to…

介观与纳米尺度物理 · 物理学 2009-11-07 S. Pilgram , A. N. Jordan , E. V. Sukhorukov , M. Buttiker

We develop a scheme for the computation of the full-counting statistics of transport described by Markovian master equations with an arbitrary time dependence. It is based on a hierarchy of generalized density operators, where the trace of…

介观与纳米尺度物理 · 物理学 2016-11-30 Mónica Benito , Michael Niklas , Sigmund Kohler

We obtain exact formulas of the first two cumulants of particle current in the q-boson zero range process via exact perturbative solution of the TQ-relation. The result is represented as an infinite sum of double contour integrals. We…

数学物理 · 物理学 2021-10-19 A. A. Trofimova , A. M. Povolotsky

We apply tensor networks to counting statistics for the stochastic particle transport in an out-of-equilibrium diffusive system. This system is composed of a one-dimensional channel in contact with two particle reservoirs at the ends. Two…

统计力学 · 物理学 2022-12-14 Jiayin Gu , Fan Zhang

Explicit formulas are obtained for all moments and for all cumulants of the electric current through a quantum chaotic cavity attached to two ideal leads, thus providing the full counting statistics for this type of system. The approach is…

介观与纳米尺度物理 · 物理学 2007-05-23 Marcel Novaes

Studying the structure of systems in nonequilibrium steady states necessitates tools that quantify population shifts and associated deformations of equilibrium free energy landscapes under persistent currents. Within the framework of…

统计力学 · 物理学 2024-08-14 Jorge L. Rosa-Raíces , David T. Limmer

We present a theory of modified reduced dynamics in the presence of counting fields. Reduced dynamics techniques are useful for describing open quantum systems at long emergent timescales when the memory timescales are short. However, they…

量子物理 · 物理学 2022-08-24 Felix A. Pollock , Emanuel Gull , K. Modi , Guy Cohen

Combinatorial optimization problems are ubiquitous in industrial applications. However, finding optimal or close-to-optimal solutions can often be extremely hard. Because some of these problems can be mapped to the ground-state search of…

量子物理 · 物理学 2025-09-04 Junpeng Hou , Amin Barzegar , Helmut G. Katzgraber

Non-equilibrium transport properties of quantum systems have recently become experimentally accessible in a number of platforms in so-called full-counting experiments that measure transient and steady state non-equilibrium transport…

量子物理 · 物理学 2016-12-28 Javier Cerrillo , Maximilian Buser , Tobias Brandes

We present a theory of frequency-dependent counting statistics of electron transport through nanostructures within the framework of Markovian quantum master equations. Our method allows the calculation of finite-frequency current cumulants…

介观与纳米尺度物理 · 物理学 2015-05-18 D. Marcos , C. Emary , T. Brandes , R. Aguado

Quantum transport in mesoscopic conductors is essentially governed by the laws of quantum mechanics. One of the major open questions of quantum mechanics is what happens if non-commuting observables are measured simultaneously. Since…

介观与纳米尺度物理 · 物理学 2010-03-15 Adam Bednorz , Wolfgang Belzig

A stochastic representation of the dynamics of open quantum systems, suitable for non-perturbative system-reservoir interaction, non-Markovian effects and arbitrarily driven systems is presented. It includes the case of driving on…

统计力学 · 物理学 2016-10-05 Jürgen T. Stockburger

Applying random matrix theory to quantum transport in chaotic cavities, we develop a novel approach to computation of the moments of the conductance and shot-noise (including their joint moments) of arbitrary order and at any number of open…

介观与纳米尺度物理 · 物理学 2009-09-07 B. A. Khoruzhenko , D. V. Savin , H. -J. Sommers

We analyze a generic model of mesoscopic machines driven by the nonadiabatic variation of external parameters. We derive a formula for the probability current; as a consequence we obtain a no-pumping theorem for cyclic processes satisfying…

统计力学 · 物理学 2009-10-02 Jordan M. Horowitz , Christopher Jarzynski

We consider a one-dimensional XX spin chain in a nonequilibrium setting with a Lindblad-type boundary driving. By calculating large deviation rate function in the thermodynamic limit, being a generalization of free energy to a…

统计力学 · 物理学 2014-01-31 Marko Znidaric