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Applying random matrix theory to quantum transport in chaotic cavities, we develop a novel approach to computation of the moments of the conductance and shot-noise (including their joint moments) of arbitrary order and at any number of open…

介观与纳米尺度物理 · 物理学 2009-09-07 B. A. Khoruzhenko , D. V. Savin , H. -J. Sommers

Within the random matrix theory approach to quantum scattering, we derive the distribution of the Wigner-Smith time delay matrix $\mathcal{Q}$ for a chaotic cavity with uniform absorption, coupled via $N$ perfect channels. In the unitary…

数学物理 · 物理学 2020-01-29 Aurélien Grabsch

The conductance of a ballistic quantum dot (having chaotic classical dynamics and being coupled by ballistic point contacts to two electron reservoirs) is computed on the single assumption that its scattering matrix is a member of Dyson's…

凝聚态物理 · 物理学 2009-10-22 R. A. Jalabert , J. -L. Pichard , C. W. J. Beenakker

We study the joint statistics of conductance $G$ and shot noise $P$ in chaotic cavities supporting a large number $N$ of open electronic channels in the two attached leads. We determine the full phase diagram in the $(G,P)$ plane, employing…

统计力学 · 物理学 2015-06-22 Fabio Deelan Cunden , Paolo Facchi , Pierpaolo Vivo

In the framework of the random matrix approach, we apply the theory of Selberg's integral to problems of quantum transport in chaotic cavities. All the moments of transmission eigenvalues are calculated analytically up to the fourth order.…

介观与纳米尺度物理 · 物理学 2009-06-02 D. V. Savin , H. -J. Sommers , W. Wieczorek

We study the Wigner-Smith time-delay matrix $Q$ of a ballistic quantum dot supporting $N$ scattering channels. We compute the $v$-point correlators of the power traces $\mathrm{Tr} Q^{\kappa}$ for arbitrary $v\geq1$ at leading order for…

数学物理 · 物理学 2016-04-12 Fabio Deelan Cunden , Francesco Mezzadri , Nick Simm , Pierpaolo Vivo

We consider statistics of electronic transport in chaotic cavities where time-reversal symmetry is broken and one of the leads is weakly non-ideal, i.e. it contains tunnel barriers characterized by tunneling probabilities $\Gamma_i$. Using…

介观与纳米尺度物理 · 物理学 2015-06-16 Sergio Rodriguez-Perez , Ricardo Marino , Marcel Novaes , Pierpaolo Vivo

The concepts of Wigner time delay and Wigner-Smith matrix allow to characterize temporal aspects of a quantum scattering process. The article reviews the statistical properties of the Wigner time delay for disordered systems; the case of…

介观与纳米尺度物理 · 物理学 2018-11-06 Christophe Texier

Recently formulated integrable theory of quantum transport [Osipov and Kanzieper, Phys. Rev. Lett. 101, 176804 (2008); arXiv:0806.2784] is extended to describe sample-to-sample fluctuations of the noise power in chaotic cavities with broken…

介观与纳米尺度物理 · 物理学 2009-11-04 Vladimir Al. Osipov , Eugene Kanzieper

We investigate transport properties of quantized chaotic systems in the short wavelength limit. We focus on non-coherent quantities such as the Drude conductance, its sample-to-sample fluctuations, shot-noise and the transmission spectrum,…

介观与纳米尺度物理 · 物理学 2007-05-23 Ph. Jacquod , Robert S. Whitney

Random matrix theory can be used to describe the transport properties of a chaotic quantum dot coupled to leads. In such a description, two approaches have been taken in the literature, considering either the Hamiltonian of the dot or its…

介观与纳米尺度物理 · 物理学 2009-11-07 M L Polianski , P W Brouwer

We calculate the joint probability distribution of the Wigner-Smith time-delay matrix $Q=-i\hbar S^{-1} \partial S/\partial \epsilon$ and the scattering matrix $S$ for scattering from a chaotic cavity with ideal point contacts. Hereto we…

介观与纳米尺度物理 · 物理学 2007-05-23 P. W. Brouwer , K. M. Frahm , C. W. J. Beenakker

We have studied statistical properties of the values of the Wigner function W(x) of 1D quantum maps on compact 2D phase space of finite area V. For this purpose we have defined a Wigner function probability distribution P(w) = (1/V) int…

量子物理 · 物理学 2009-11-13 Martin Horvat , Tomaz Prosen

We study shot noise for generic quantum dots coupled to two leads and allow for an arbitrary strength of diffractive impurity scattering inside the dots. The ballistic quantum dots possess a mixed classical phase space, where regular and…

介观与纳米尺度物理 · 物理学 2007-05-23 H. -S. Sim , H. Schomerus

Within a random matrix theory approach, we obtain spectral statistics of the Wigner time delay matrix $Q$, for arbitrary channels number $M$ and for all symmetry classes, in fact for general Dyson parameter $\beta$. We also put forth two…

混沌动力学 · 物理学 2022-08-18 Marcel Novaes

We study the statistical properties of the time delay matrix $Q$ in the context of quantum transport through a chaotic cavity, in the absence of time-reversal invariance. First, we approach the problem from the point of view of random…

混沌动力学 · 物理学 2015-07-23 Marcel Novaes

We add simple tunnelling effects and ray-splitting into the recent trajectory-based semiclassical theory of quantum chaotic transport. We use this to derive the weak-localization correction to conductance and the shot-noise for a quantum…

介观与纳米尺度物理 · 物理学 2007-11-03 Robert S. Whitney

We calculate the cumulants of the charge transmitted through a chaotic cavity in the limit that the two openings have a large number of scattering channels. The shot noise, which is the second cumulant, is known to be insensitive to…

凝聚态物理 · 物理学 2007-05-23 Ya. M. Blanter , H. Schomerus , C. W. J. Beenakker

We give formulae for the cumulants of complex Wishart (LUE) and inverse Wishart matrices (inverse LUE). Their large-$N$ expansions are generating functions of double (strictly and weakly) monotone Hurwitz numbers which count constrained…

数学物理 · 物理学 2021-04-12 Fabio Deelan Cunden , Antoine Dahlqvist , Neil O'Connell

Electronic transport through chaotic quantum dots exhibits universal, system independent, properties, consistent with random matrix theory. The quantum transport can also be rooted, via the semiclassical approximation, in sums over the…

混沌动力学 · 物理学 2013-03-06 Gregory Berkolaiko , Jack Kuipers
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