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We study non-interacting fermionic systems undergoing continuous monitoring and driven by biased reservoirs. Averaging over the measurement outcomes, we derive exact formulas for the particle and heat flows in the system. We show that these…

量子物理 · 物理学 2024-04-10 João Ferreira , Tony Jin , Jochen Mannhart , Thierry Giamarchi , Michele Filippone

Inspired by some recent experiments and numerical works related to nanoresonators, we perform classical molecular dynamics simulations to investigate the thermal expansion and the ability of the device to act as a strain sensor assisted by…

介观与纳米尺度物理 · 物理学 2016-08-24 Agustín Mancardo Viotti , Alejandro G. Monastra , Mariano F. Moreno , M. Florencia Carusela

We present the results of classical molecular dynamics simulations to assess the relative contributions to interfacial thermal conductance from inelastic phonon processes at the interface and in the adjacent bulk materials. The simulated…

We study heat transport in quantum spin systems analytically and numerically. First, we demonstrate that heat current through a two-level quantum spin system can be modulated from zero to a finite value by tuning a magnetic field. Second,…

介观与纳米尺度物理 · 物理学 2009-11-13 Yonghong Yan , Chang-Qin Wu , Baowen Li

We study how energy transport in an integrable system is affected by the spectral densities of heat reservoirs. The model investigated here is the quantum harmonic chain whose both ends are in contact with two heat reservoirs at different…

统计力学 · 物理学 2007-05-23 K. Saito , S. Takesue , S. Miyashita

We analyze the dynamics of a nanomechanical oscillator coupled to an electrical tunnel junction with an arbitrary voltage applied to the junction and arbitrary temperature of electrons in leads. We obtain the explicit expressions for the…

介观与纳米尺度物理 · 物理学 2009-11-07 Anatoly Yu. Smirnov , Lev G. Mourokh , Norman J. M. Horing

We present a model for an autonomous quantum thermal machine comprised of two qubits capable of manipulating and even amplifying the local coherence in a non-degenerate external system. The machine uses only thermal resources, namely,…

量子物理 · 物理学 2019-05-01 Gonzalo Manzano , Ralph Silva , Juan M. R. Parrondo

Using a one-dimensional tight-binding Anderson model, we study a disordered nanowire in the presence of an external gate which can be used for depleting its carrier density (field effect transistor device configuration). In this first…

介观与纳米尺度物理 · 物理学 2014-05-01 Riccardo Bosisio , Geneviève Fleury , Jean-Louis Pichard

We propose and demonstrate an experimental scheme to engineer thermal baths with independently tunable temperatures and dissipation rates for the motional modes of a trapped-ion system. This approach enables robust thermal-state preparation…

Autonomous quantum thermal machines are particularly suited to understand how correlations between thermal baths, a load, and a thermal machine affect the overall thermodynamic functioning of the setup. Here, we show that by tuning the…

量子物理 · 物理学 2025-06-23 Gauthameshwar S. , Noufal Jaseem , Dario Poletti

In this paper, we study two semilinear systems describing a monotubular and a two-stream heat exchanger. Neither system is exactly controllable; however, for each we specify a subspace of the state space with respect to which the system is…

最优化与控制 · 数学 2026-01-15 Ismail Huseynov , Arzu Ahmadova , Agamirza E. Bashirov

Quantum heat transfer through a generic superconducting set-up consisting of a tunable transmon qubit placed between resonators that are termined by thermal reservoirs is explored. Two types of architectures are considered, a sequential and…

量子物理 · 物理学 2021-03-24 Meng Xu , J. T. Stockburger , J. Ankerhold

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

In this paper, we introduce a real symmetric and positive semi-definite matrix, which we call the non-equilibrium conductance matrix, and which generalizes the Onsager response matrix for a system in a non-equilibrium stationary state. We…

统计力学 · 物理学 2018-02-16 Hadrien Vroylandt , David Lacoste , Gatien Verley

Nanoconfinement induces many intriguing non-Fourier heat conduction phenomena that have been extensively studied in recent years, such as the nonlinear temperature profile inside the devices, the temperature jumps near the contacts, and the…

介观与纳米尺度物理 · 物理学 2019-10-16 Yue Hu , Xiaokun Gu , Tianli Feng , Zheyong Fan , Hua Bao

We investigate the thermodynamic behavior of open quantum systems through the Hamiltonian of Mean Force, focusing on two models: a two-qubit system interacting with a thermal bath and a Jaynes-Cummings Model without the rotating wave…

量子物理 · 物理学 2025-09-03 Neha Pathania , Devvrat Tiwari , Subhashish Banerjee

Using numerical diagonalization techniques we analyze the finite temperature/frequency conductance of a one dimensional model of interacting spinless fermions. Depending on the interaction, the observed finite temperature charge stiffness…

凝聚态物理 · 物理学 2009-10-28 X. Zotos , P. Prelovsek

Quantum heat transport devices are currently intensively studied in theory. Experimental realization of quantum heat transport devices is a challenging task. So far, they have been mostly investigated in experiments with ultra-cold atoms…

介观与纳米尺度物理 · 物理学 2022-03-29 Azat Gubaydullin , George Thomas , Dmitry S. Golubev , Dmitrii Lvov , Joonas T. Peltonen , Jukka P. Pekola

The electronic conduction of a novel, three-terminal molecular architecture, analogous to a heterojunction bipolar transistor is studied. In this architecture, two diode arms consisting of donor-acceptor molecular wires fuse through a ring,…

介观与纳米尺度物理 · 物理学 2009-11-13 Haiying He , Ravindra Pandey , Shashi P. Karna

We present a theoretical study of radiative heat transport in nonlinear solid-state quantum circuits. We give a detailed account of heat rectification effects, i.e. the asymmetry of heat current with respect to a reversal of the thermal…

介观与纳米尺度物理 · 物理学 2009-04-28 Tomi Ruokola , Teemu Ojanen , Antti-Pekka Jauho