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相关论文: Electronic heat flow and thermal shot noise in qua…

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We calculate the finite temperature and non-equilibrium electric current through systems described generically at low energy by a singlet and \emph{two} spin doublets for $N$ and $N \pm 1$ electrons respectively, coupled asymmetrically to…

强关联电子 · 物理学 2011-08-24 P. Roura-Bas , L. Tosi , A. A. Aligia , K. Hallberg

We consider the Johnson noise of a two-dimensional, two-terminal electrical conductor for which the electron system obeys the Wiedemann-Franz law. We derive two simple and generic relations between the Johnson Noise temperature and the heat…

介观与纳米尺度物理 · 物理学 2021-10-22 Calvin Pozderac , Brian Skinner

We study the process of heat transfer through an entangled pair of two-level system, demonstrating the role of quantum correlations in this nonequilibrium process. While quantum correlations generally degrade with increasing the temperature…

量子物理 · 物理学 2015-05-28 Lian-Ao Wu , Dvira Segal

We investigate shot noise of photon-excited electron-hole pairs in open multi-terminal, multi-channel chaotic dots. Coulomb interactions in the dot are treated self-consistently giving a gauge-invariant expression for the finite frequency…

介观与纳米尺度物理 · 物理学 2007-05-23 M. L. Polianski , P. Samuelsson , M. Buttiker

We formulate a general path integral approach which describes statistics of current fluctuations in mesoscopic coherent conductors at arbitrary frequencies and in the presence of interactions. Applying this approach to the non-interacting…

介观与纳米尺度物理 · 物理学 2009-11-10 D. S. Golubev , A. V. Galaktionov , A. D. Zaikin

We investigate cross-correlations in the tunneling currents through two parallel quantum dots coupled to independent electrodes and gates and interacting via an inter-dot Coulomb interaction. The correlations reveal additional information,…

介观与纳米尺度物理 · 物理学 2008-02-26 Sebastian Haupt , Jasmin Aghassi , Matthias H. Hettler , Gerd Sch"on

We present an ab-initio method to simulate the current noise in the presence of electron-vibration interactions in atomic and molecular junctions at finite temperature. Using a combination of nonequilibrium Keldysh Green's function…

介观与纳米尺度物理 · 物理学 2020-01-01 S. G. Bahoosh , M. A. Karimi , W. Belzig , E. Scheer , F. Pauly

We studied the phononic heat transfer through an atomic dielectric wire with both infinite and finite lengths by using a model Hamiltonian approach. At low temperature under ballistic transport, the thermal conductance contributed by each…

凝聚态物理 · 物理学 2009-10-31 A. Buldum , S. Ciraci , C. Y. Fong

Tunneling conductance of an Aharonov-Bohm circuit including two quantum dots is calculated based on the general expression of the conductance in the linear response regime of the bias voltage. The calculation is performed in a wide…

介观与纳米尺度物理 · 物理学 2009-10-30 Wataru Izumida , Osamu Sakai , Yukihiro Shimizu

We analyze the heat transfer between two nanoparticles separated by a distance lying in the near-field domain in which energy interchange is due to Coulomb interactions. The thermal conductance is computed by assuming that the particles…

材料科学 · 物理学 2008-04-18 Agustin Pérez-Madrid , José M. Rubí , Luciano C. Lapas

We develop a theory of Coulomb blockade oscillations in transport and thermodynamic properties of a mesoscopic device having multiple charging energy modes. This setup can be realized using a nanoelectronic circuit comprising coupled hybrid…

介观与纳米尺度物理 · 物理学 2025-01-23 D. B. Karki

The energy and charge fluxes carried by electrons in a two-terminal junction subjected to a random telegraph noise, produced by a single electronic defect, are analyzed. The telegraph processes are imitated by the action of a stochastic…

介观与纳米尺度物理 · 物理学 2017-12-06 O. Entin-Wohlman , D. Chowdhury , A. Aharony , S. Dattagupta

Understanding how the mechanism of charge transport through molecular tunnel junctions depends on temperature is crucial to control electronic function in molecular electronic devices. With just a few systems investigated as a function of…

介观与纳米尺度物理 · 物理学 2016-05-27 Alvar R. Garrigues , Lejia Wang , Enrique del Barco , Christian A. Nijhuis

Electric-field noise from the surfaces of ion-trap electrodes couples to the ion's charge causing heating of the ion's motional modes. This heating limits the fidelity of quantum gates implemented in quantum information processing…

原子物理 · 物理学 2017-01-18 D. A. Hite , K. S. McKay , S. Kotler , D. Leibfried , D. J. Wineland , D. P. Pappas

We discuss the statistical correlation properties of currents and energy flows generated by an adiabatic quantum pump. Our approach emphasizes the important role of quantized energy exchange between the sea of electrons and the oscillating…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Moskalets , M. Buttiker

Heat is detrimental for the operation of quantum systems, yet it fundamentally behaves according to quantum mechanics, being phase coherent and universally quantum-limited regardless of its carriers. Due to their robustness, superconducting…

介观与纳米尺度物理 · 物理学 2020-08-31 Olivier Maillet , Diego Subero , Joonas T. Peltonen , Dmitry S. Golubev , Jukka P. Pekola

A general master equation is derived to describe an electromechanical single-dot transistor in the Coulomb blockade regime. In the equation, Fermi distribution functions in the two leads are taken into account, which allows one to study the…

介观与纳米尺度物理 · 物理学 2015-06-03 Wenxi Lai , Yunshan Cao , Zhongshui Ma

We investigate the time-evolution of a charge qubit subject to quantum telegraph noise produced by a single electronic defect level. We obtain results for the time-evolution of the coherence that are strikingly different from the usual case…

介观与纳米尺度物理 · 物理学 2008-06-25 Benjamin Abel , Florian Marquardt

A unified view on macroscopic thermodynamics and quantum transport is presented. Thermodynamic processes with an exchange of energy between two systems necessarily involve the flow of other balanceable quantities. These flows are first…

介观与纳米尺度物理 · 物理学 2012-10-02 C. Strunk

We investigate theoretically the thermoelectric transport through a circuit implementation of the three-channel "charge" Kondo model quantum simulator [Z. Iftikhar et al., Science 360, 1315 (2018)]. The universal temperature scaling law of…

介观与纳米尺度物理 · 物理学 2020-07-09 T. K. T. Nguyen , M. N. Kiselev