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A one-dimensional boundary of a two-dimensional topological superconductor can host a number of topologically protected chiral modes. Combining two topological superconductors with different topological indices, it is possible to achieve a…

介观与纳米尺度物理 · 物理学 2022-08-17 Daniil S. Antonenko , Eslam Khalaf , Pavel M. Ostrovsky , Mikhail A. Skvortsov

We theoretically study a charge qubit interacting with electrons in a semi-infinite 1D wire. The system displays the physics of the Fermi edge singularity. Our results generalize known results for the Fermi-edge system to the regime where…

强关联电子 · 物理学 2013-02-25 A. Sheikhan , I. Snyman

In a large-scale wireless ad hoc network in which all transmitters form a homogeneous of Poisson point process, the statistics of the signal-to-interference ratio (SIR) in prior work is only derived in closed-form for the case of Rayleigh…

信息论 · 计算机科学 2015-05-27 Chun-Hung Liu

Our previous understanding of transport in disordered system depends on the assumption that there is a well-defined Fermi velocity. The Fermi velocity determines important length scales in the system such as the diffusion length and…

介观与纳米尺度物理 · 物理学 2025-10-01 Chun Wang Chau , Tian Xiang , Shuai A. Chen , K. T. Law

We study the statistics of the optimal path in both random and scale free networks, where weights $w$ are taken from a general distribution $P(w)$. We find that different types of disorder lead to the same universal behavior. Specifically,…

无序系统与神经网络 · 物理学 2016-08-16 Yiping Chen , Eduardo López , Shlomo Havlin , H. Eugene Stanley

The quantum-mechanical transmission through a disordered tunnel barrier is investigated analytically in the following regime: (correlation range of the random potential) << (penetration length) << (barrier length). The mean and/or the width…

介观与纳米尺度物理 · 物理学 2007-05-23 J. M. Luck

We study the behavior of solutions to the first-order mean field games system with a local coupling, when the initial density is a compactly supported function on the real line. Our results show that the solution is smooth in regions where…

偏微分方程分析 · 数学 2023-08-02 Pierre Cardaliaguet , Sebastian Munoz , Alessio Porretta

We consider a phase-coherent system of two parallel quantum wires that are coupled via a tunneling barrier of finite length. The usual perturbative treatment of tunneling fails in this case, even in the diffusive limit, once the length L of…

介观与纳米尺度物理 · 物理学 2009-11-07 Daniel Boese , Michele Governale , A. Rosch , U. Zuelicke

Whilst it has long been known that disorder profoundly affects transport properties, recent measurements on a series of solid solution 3d-transition metal alloys reveal two orders of magnitude variations in the residual resistivity. Using…

材料科学 · 物理学 2019-03-18 Sai Mu , G. D. Samolyuk , S. Wimmer , M. C. Troparevsky , S. Khan , S. Mankovsky , H. Ebert , G. M. Stocks

The ratio between mobility and diffusion parameters is derived for a Gaussian-like density of states. This steady-state analysis is expected to be applicable to a wide range of organic materials (polymers or small molecules) as it relies on…

统计力学 · 物理学 2007-05-23 Yohai Roichman , Nir Tessler

We study Coulomb drag between two parallel disordered mesoscopic 1D-wires. By numerical ensemble averaging we calculate the statistical properties of the transconductance G_21 including its distribution. For wires with mutually uncorrelated…

介观与纳米尺度物理 · 物理学 2007-05-23 Niels Asger Mortensen , Karsten Flensberg , Antti-Pekka Jauho

The planar-diagrammatic technique of large-$N$ random matrices is extended to evaluate averages over the circular ensemble of unitary matrices. It is then applied to study transport through a disordered metallic ``grain'', attached through…

凝聚态物理 · 物理学 2009-10-28 N. Argaman , A. Zee

We theoretically investigate the electron transport properties for a semiconductor quantum wire containing a single finite-size attractive impurity under an external terahertz electromagnetic field illumination in the ballistic limit.…

介观与纳米尺度物理 · 物理学 2009-11-11 Guanghui Zhou , Yuan Li , Fang Cheng , Wenfu Liao

We consider scattering and transport in interacting quantum wires that are connected to leads. Such a setup can be represented by a minimal model of interacting fermions with inhomogeneities in the form of sudden changes in interaction…

强关联电子 · 物理学 2012-09-10 N. Sedlmayr , J. Ohst , I. Affleck , J. Sirker , S. Eggert

We study the transport properties of interacting electrons in a disordered quantum wire within the framework of the Luttinger liquid model. We demonstrate that the notion of weak localization is applicable to the strongly correlated…

无序系统与神经网络 · 物理学 2007-05-23 I. V. Gornyi , A. D. Mirlin , D. G. Polyakov

We study transport properties of a disordered tight-binding model (XX spin chain) in the presence of dephasing. Focusing on diffusive behavior in the thermodynamic limit at high energies, we analytically derive the dependence of…

强关联电子 · 物理学 2013-03-05 Marko Znidaric , Martin Horvat

We derive an effective low-energy theory of disordered interacting quantum wires. Our theory describes Anderson localization in the limit of vanishing dephasing and reduces to standard abelian bosonization in the limit of vanishing…

介观与纳米尺度物理 · 物理学 2008-05-26 T. Micklitz , Alexander Altland , Julia S. Meyer

We study a penetration of an electron with high energy E<<T through strongly disordered wire of length L<<a (a being the localization length). Such an electron can loose, but not gain the energy, when hopping from one localized state to…

介观与纳米尺度物理 · 物理学 2015-05-19 A. S. Ioselevich , D. I. Pikulin

Transmission of the scalar field through the random medium, represented by the system of randomly distributed dielectric cylinders is calculated numerically. System is mapped to the problem of electronic transport in disordered…

介观与纳米尺度物理 · 物理学 2016-08-31 P. Markos , C. M. Soukoulis

The Mott-Anderson transition in the disordered charge-transfer model displays several new features in comparison to what is found in the disordered single-band Hubbard model, as recently demonstrated by large-scale computational…

强关联电子 · 物理学 2014-05-09 W. S. Oliveira , M. C. O. Aguiar , V. Dobrosavljevic