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In realistic nanoscale transport set-ups, electron-phonon coupling leads to the exchange of heat between phonon baths and electronic reservoirs with finite heat capacities. Such exchange affects the finite reservoir's temperature. However,…

统计力学 · 物理学 2026-05-01 Sindre Brattegard , Stephanie Matern , Mark T. Mitchison , Saulo V. Moreira

Using a simple quantum master equation approach, we calculate the Full Counting Statistics of a single electron transistor strongly coupled to vibrations. The Full Counting Statistics contains both the statistics of integrated particle and…

统计力学 · 物理学 2013-03-25 Gernot Schaller , Thilo Krause , Tobias Brandes , Massimiliano Esposito

In this paper we examine the behavior in temperature of the free energy on quantum systems in an arbitrary number of dimensions. We define from the free energy a function $C$ of the coupling constants and the temperature, which in the…

凝聚态物理 · 物理学 2009-10-22 A. H. Castro Neto , Eduardo Fradkin

Continuous quantum measurement and feedback induce energy exchange between a dissipative qubit and a monitor even in the steady state, as a measurement backaction. Using the Lindblad equation, we identified the maximum and minimum values of…

量子物理 · 物理学 2025-02-11 Tsuyoshi Yamamoto , Yasuhiro Tokura

We build an exact framework to evaluate heat, energy, and particle transport between Gaussian reservoirs mediated by a quadratic quantum system. By combining full counting statistics with newly developed non-Markovian master equation…

量子物理 · 物理学 2026-02-25 Guglielmo Pellitteri , Vittorio Giovannetti , Vasco Cavina

We examine the thermal conductivity and bulk viscosity of a one-dimensional (1D) chain of particles with cubic-plus-quartic interparticle potentials and no on-site potentials. This system is equivalent to the FPU-alpha beta system in a…

统计力学 · 物理学 2009-11-13 G. R. Lee-Dadswell , B. G. Nickel , C. G. Gray

The motion of a quantum particle hopping on a simple cubic lattice under the influence of thermal noise and of a static random potential is expected to be diffusive, i.e., the particle is expected to exhibit `quantum Brownian motion', no…

数学物理 · 物理学 2017-09-22 Jürg Fröhlich , Jeffrey Schenker

We consider the quantum transport in a tight-binding chain with a locally applied potential which is oscillating in time. The steady state for such a driven impurity can be calculated exactly for any energy and applied potential using the…

介观与纳米尺度物理 · 物理学 2016-05-12 Daniel Thuberg , Sebastian A. Reyes , Sebastian Eggert

We investigate the transient evolution of finite-frequency current noise after abrupt switching on of the tunneling coupling in two paradigmatic, exactly solvable models of mesoscopic physics: the resonant level model and the Majorana…

介观与纳米尺度物理 · 物理学 2012-10-09 K. Joho , S. Maier , A. Komnik

We investigate theoretically the transport properties of the side-coupled double quantum dots in connection with the experimental study of Sasaki {\it et al.} Phys.Rev.Lett.{\bf 103}, 266806 (2009). The novelty of the set-up consists in…

介观与纳米尺度物理 · 物理学 2016-08-14 A. Aldea , M. Ţolea , I. V. Dinu

We study the zero-bias conductance through the system of two quantum dots, one of which is embedded directly between the source and drain electrodes, while the second dot is side-coupled to the first one through a tunneling junction.…

介观与纳米尺度物理 · 物理学 2010-08-10 Rok Zitko

We investigate current-current correlations of adiabatic charge pumping through interacting quantum dots weakly coupled to reservoirs. To calculate the zero-frequency noise for a time-dependently driven system, possibly in the presence of…

介观与纳米尺度物理 · 物理学 2013-06-05 Roman-Pascal Riwar , Janine Splettstoesser , Jürgen König

We propose a method to evaluate general thermodynamic fluctuations in open quantum systems, based on performing a two-point measurement scheme on the system using dynamics-dependent thermodynamic observables. Our approach allows one to…

量子物理 · 物理学 2026-04-30 Alessandra Colla , Andrea Smirne , Heinz-Peter Breuer , Bassano Vacchini

This paper explores the dynamics of current and the quantum transport factor in a fermionic system with a central oscillator interacting with two fermionic reservoirs at different temperatures. We derive the master equation for the system…

量子物理 · 物理学 2025-03-25 Jayarshi Bhattacharya , Gautam Gangopadhyay , Sunandan Gangopadhyay

We develop a quantum noise approach to study quantum transport through nanostructures. The nanostructures, such as quantum dots, are regarded as artificial atoms, subject to quasi-equilibrium fermionic reservoirs of electrons in biased…

介观与纳米尺度物理 · 物理学 2011-01-14 Nan Zhao , Jia-Lin Zhu , R. -B. Liu , C. P. Sun

We study particle current in a recently proposed model for coherent quantum transport. In this model a system connected to mesoscopic Fermi reservoirs (meso-reservoir) is driven out of equilibrium by the action of super reservoirs…

统计力学 · 物理学 2013-01-01 S. Ajisaka , F. Barra , C. Mejia-Monasterio , T. Prosen

The impact of quantum mechanics on thermodynamics, particularly on the principles and designs of heat machines (HM), has been limited by the incompatibility of quantum coherent evolution with the dissipative, open-system nature of all…

量子物理 · 物理学 2025-02-07 Gershon Kurizki , Nilakantha Meher , Tomáš Opatrný

Thermodynamics of quantum coherence has attracted growing attention recently, where the thermodynamic advantage of quantum superposition is characterized in terms of quantum thermodynamics. We investigate thermodynamic effects of quantum…

统计力学 · 物理学 2017-10-25 Yûto Murashita , Zongping Gong , Yuto Ashida , Masahito Ueda

We derive the symmetrized current-noise spectrum of a quantum dot, which is weakly tunnel-coupled to an electron reservoir and driven by a slow time-dependent gate voltage. This setup can be operated as an on-demand emitter of single…

介观与纳米尺度物理 · 物理学 2018-09-12 Niklas Dittmann , Janine Splettstoesser

In quantum statistical mechanics, finite-temperature phase transitions are typically governed by classical field theories. In this context, the role of quantum correlations is unclear: recent contributions have shown how entanglement is…