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相关论文: Full Counting Statistics and Field Theory

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Monte Carlo simulations and an analytical approach within the framework of a semiclassical model are presented which permit the determination of Coulomb blockade and single electron charging effects for multiple tunnel junctions coupled in…

介观与纳米尺度物理 · 物理学 2009-10-30 U. E. Volmar , U. Weber , R. Houbertz , U. Hartmann

Long-range properties of the two-point correlation function of the electromagnetic field produced by an elementary particle are investigated. Using the Schwinger-Keldysh formalism it is shown that this function is finite in the coincidence…

高能物理 - 理论 · 物理学 2009-11-10 Kirill A. Kazakov

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

We discuss the Full Counting Statistics of non-commuting variables with the measurement of successive spin counts in non-collinear directions taken as an example. We show that owing to an irreducible detector back-action, the FCS in this…

介观与纳米尺度物理 · 物理学 2007-05-23 Antonio Di Lorenzo , Gabriele Campagnano , Yuli V. Nazarov

In two dimensional conformal field theories the limit of large central charge plays the role of a semi-classical limit. Certain universal observables, such as conformal blocks involving the exchange of the identity operator, can be expanded…

高能物理 - 理论 · 物理学 2023-06-07 Nathan Benjamin , Scott Collier , Alexander Maloney , Viraj Meruliya

The conductance through a finite quantum dot network is studied as a function of inter-dot coupling. As the coupling is reduced, the system undergoes a transition from the antidot regime to the tight binding limit, where Coulomb resonances…

介观与纳米尺度物理 · 物理学 2009-11-10 August Dorn , Thomas Ihn , Klaus Ensslin , Werner Wegscheider , Max Bichler

A quantum dot is a sub-micron-scale conducting device containing up to several thousand electrons. Transport through a quantum dot at low temperatures is a quantum-coherent process. This review focuses on dots in which the electron's…

介观与纳米尺度物理 · 物理学 2008-11-26 Y. Alhassid

We determine the zero-bias anomaly of the conductance of tunnel junctions by an approach unifying the conventional Coulomb blockade theory for ultrasmall junctions with the diffusive anomalies in disordered conductors. Both,…

介观与纳米尺度物理 · 物理学 2009-11-07 Joerg Rollbuehler , Hermann Grabert

Coulomb drag is a transport phenomenon whereby long-range Coulomb interaction between charge carriers in two closely spaced but electrically isolated conductors induces a voltage (or, in a closed circuit, a current) in one of the conductors…

介观与纳米尺度物理 · 物理学 2016-05-25 B. N. Narozhny , A. Levchenko

Correlations in photodetection signals from quantum light sources are conventionally calculated by application of the source master equation and the quantum regression theorem. In this article we show how the conditioned dynamics,…

量子物理 · 物理学 2015-12-09 Qing Xu , Eliska Greplova , Brian Julsgaard , Klaus Mølmer

We study drag effect in a system of two electrically isolated quantum point contacts (QPC), coupled by Coulomb interactions. Drag current exhibits maxima as a function of QPC gate voltages when the latter are tuned to the transitions…

介观与纳米尺度物理 · 物理学 2009-11-13 Alex Levchenko , Alex Kamenev

We present a stochastic thermodynamics analysis of an electron-spin-resonance pumped quantum dot device in the Coulomb-blocked regime, where a pure spin current is generated without an accompanying net charge current. Based on a generalized…

统计力学 · 物理学 2020-03-18 JunYan Luo , Yiying Yan , Hailong Wang , Jing Hu , Xiao-Ling He , Gernot Schaller

We develop a semiclassical theory of Coulomb blockade peak heights in chaotic quantum dots. Using Berry's conjecture, we calculate the peak height distributions and the correlation functions. We demonstrate that the corrections to the…

介观与纳米尺度物理 · 物理学 2009-11-07 Evgenii E. Narimanov , Harold U. Baranger , Nicholas R. Cerruti , Steven Tomsovic

This paper compares two methods of statistical mechanics used to study a classical Coulomb system S near an ideal conductor C. The first method consists in neglecting the thermal fluctuations in the conductor C and constrains the electric…

凝聚态物理 · 物理学 2009-10-28 B. Jancovici , G. Tellez

We consider a classical system of n charged particles in an external confining potential, in any dimension d larger than 2. The particles interact via pairwise repulsive Coulomb forces and the coupling parameter scales like the inverse of n…

数学物理 · 物理学 2015-01-26 N. Rougerie , S. Serfaty

A general formula for current noise in a two-terminal ballistic nondegenerate conductor under the action of long-range Coulomb correlations has been derived. The noise reduction factor (in respect to the uncorrelated value) is obtained for…

介观与纳米尺度物理 · 物理学 2007-05-23 O. M. Bulashenko , J. M. Rubi , V. A. Kochelap

We study the transport through a quantum dot coupled to two leads by single-mode point contacts. The linear conductance is calculated analytically as a function of a gate voltage and temperature T in the case when transmission coefficients…

凝聚态物理 · 物理学 2009-10-28 A. Furusaki , K. A. Matveev

Straight line trajectories are commonly used in semi-classical calculations of the first-order Coulomb excitation cross section at intermediate energies, and simple corrections are often made for the distortion of the trajectories that is…

核理论 · 物理学 2008-11-26 H. Esbensen

We consider current shot noise and the full counting statistics in a chain of quantum dots which exhibits a continuous non-equilibrium phase transition as a function of the tunnel couplings of the chain with the electrodes. Using a…

介观与纳米尺度物理 · 物理学 2010-01-22 Torsten Karzig , Felix von Oppen

We investigate the effect of local Coulomb correlations on electronic transport through a variety of coupled quantum dot systems connected to Fermi liquid leads. We use a newly developed functional renormalization group scheme to compute…

介观与纳米尺度物理 · 物理学 2007-05-23 C. Karrasch , T. Enss , V. Meden