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We address the problem of heat transport in a chain of coupled quantum harmonic oscillators, exposed to the influences of local environments of various nature, stressing the effects that the specific nature of the environment has on the…

量子物理 · 物理学 2015-04-16 F. Nicacio , A. Ferraro , A. Imparato , M. Paternostro , F. L. Semião

Deriving macroscopic phenomenological laws of irreversible thermodynamics from simple microscopic models is one of the tasks of non-equilibrium statistical mechanics. We consider stationary energy transport in crystals with reference to…

统计力学 · 物理学 2015-06-24 Stefano Lepri , Roberto Livi , Antonio Politi

We discuss the problem of heat conduction in classical and quantum low dimensional systems from a microscopic point of view. At the classical level we provide convincing numerical evidence for the validity of Fourier law of heat conduction…

统计力学 · 物理学 2008-07-15 Giulio Casati , Carlos Mejia-Monasterio

This Chapter contains an overview of the effects of nonlinear interactions in selected problems of non-equilibrium statistical mechanics. Most of the emphasis is put on open setups, where energy is exchanged with the environment. With…

斑图形成与孤子 · 物理学 2020-06-23 Stefano Iubini , Stefano Lepri , Roberto Livi , Antonio Politi , Paolo Politi

We apply the hierarchical equations of motion technique to analyzing nonequilibrium heat transport in a spin-boson type model, whereby heat transfer through a central spin is mediated by an intermediate pair of coupled harmonic oscillators.…

介观与纳米尺度物理 · 物理学 2024-07-29 Graeme Pleasance , Francesco Petruccione

We generalize time-evolving matrix product operators method to nonequilibrium quantum transport problems. The nonequilibrium current is obtained via numerical differentiation of the generating functional which is represented as a tensor…

介观与纳米尺度物理 · 物理学 2023-03-23 Ruofan Chen

Understanding heat transport in one-dimensional systems remains a major challenge in theoretical physics, both from the quantum as well as from the classical point of view. In fact, steady states of one-dimensional systems are commonly…

统计力学 · 物理学 2019-10-02 Carlos Mejía-Monasterio , Antonio Politi , Lamberto Rondoni

We theoretically propose a phase-coherent thermal circulator based on ballistic multiterminal Josephson junctions. The breaking of time-reversal symmetry by either a magnetic flux or a superconducting phase bias allows heat to flow…

介观与纳米尺度物理 · 物理学 2018-10-30 Sun-Yong Hwang , Francesco Giazotto , Björn Sothmann

As a paradigm for heat conduction in 1 dimension, we propose a class of models represented by chains of identical cells, each one of which containing an energy storage device called a "tank". Energy exchange among tanks is mediated by…

混沌动力学 · 物理学 2009-11-11 Jean-Pierre Eckmann , Lai-Sang Young

We present a detailed derivation of Fourier's law in a class of stochastic energy exchange systems that naturally characterize two-dimensional mechanical systems of locally confined particles in interaction. The stochastic systems consist…

统计力学 · 物理学 2009-08-29 Pierre Gaspard , Thomas Gilbert

It has been observed in many numerical simulations, experiments and from various theoretical treatments that heat transport in one-dimensional systems of interacting particles cannot be described by the phenomenological Fourier's law. The…

统计力学 · 物理学 2019-11-12 Abhishek Dhar , Anupam Kundu , Aritra Kundu

We develop a detailed theory describing a non-trivial interplay between non-equilibrium effects and long-range quantum coherence in superconducting hybrid nanostructures exposed to a temperature gradient. We establish a direct relation…

超导电性 · 物理学 2021-04-05 Mikhail S. Kalenkov , Andrei D. Zaikin

We study the energy flow between a one dimensional oscillator and a chaotic system with two degrees of freedom in the weak coupling limit. The oscillator's observables are averaged over an initially microcanonical ensemble of trajectories…

混沌动力学 · 物理学 2015-06-26 M. V. S. Bonanca , M. A. M. de Aguiar

We discuss how phase coherence manifests in the heat transport through superconducting single and multichannel Josephson junctions in time dependent situations. We consider the heat current driven through the junction by a temperature…

超导电性 · 物理学 2015-03-02 P. Virtanen , F. Giazotto

The understanding of heat transport in nonequilibrium thermodynamics is an important research frontier, which is crucial for implementing novel thermodynamic devices, such as heat engines and refrigerators. The convection, conduction, and…

光学 · 物理学 2020-10-28 Cheng Yang , Xinrui Wei , Jiteng Sheng , Haibin Wu

We initially prepare a quantum linear oscillator weakly coupled to a bath in equilibrium at an arbitrary temperature. We disturb this system by varying a Hamiltonian parameter of the coupled oscillator, namely, either its spring constant or…

统计力学 · 物理学 2015-05-27 Ilki Kim

We study the most suitable procedure to measure the effective temperature in off-equilibrium systems. We analyze the stationary current established between an off-equilibrium system and a thermometer and the necessary conditions for that…

无序系统与神经网络 · 物理学 2015-06-24 Adan Garriga , Felix Ritort

Thermodynamic principles are often deceptively simple and yet surprisingly powerful. We show how a simple rule, such as the net flow of energy in and out of a moving atom under nonequilibrium steady state condition, can expose the…

量子物理 · 物理学 2020-11-30 Daniel Reiche , Francesco Intravaia , Jen-Tsung Hsiang , Kurt Busch , Bei-Lok Hu

Since its recent foundation, phase-coherent caloritronics has sparkled continuous interest giving rise to numerous concrete applications. This research field deals with the coherent manipulation of heat currents in mesoscopic…

介观与纳米尺度物理 · 物理学 2018-08-20 Claudio Guarcello , Paolo Solinas , Alessandro Braggio , Francesco Giazotto

We apply the stochastic thermodynamics formalism to describe the dynamics of systems of complex Langevin and Fokker-Planck equations. We provide in particular a simple and general recipe to calculate thermodynamical currents, dissipated and…

统计力学 · 物理学 2019-01-30 Simone Borlenghi , Anna Delin
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