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In classical mechanics, a light particle bound by a strong elastic force just oscillates at high frequency in the region allowed by its initial position and velocity. In quantum mechanics, instead, the ground state of the particle becomes…

综合物理 · 物理学 2017-01-03 G. Modanese

This is a comprehensive review of the random-matrix approach to the theory of phase-coherent conduction in mesocopic systems. The theory is applied to a variety of physical phenomena in quantum dots and disordered wires, including universal…

介观与纳米尺度物理 · 物理学 2008-02-03 C. W. J. Beenakker

The coherent flow of a Bose-Einstein condensate through a quantum dot in a magnetic waveguide is studied. By the numerical integration of the time-dependent Gross-Pitaevskii equation in presence of a source term, we simulate the propagation…

其他凝聚态物理 · 物理学 2009-11-10 Tobias Paul , Klaus Richter , Peter Schlagheck

In this work the root to macroscopic quantum effects is revealed based on the quasiparticle model of collective excitations in an arbitrary degenerate electron gas. The $N$-electron quantum system is considered as $N$ streams coupled,…

量子物理 · 物理学 2023-11-17 M. Akbari-Moghanjoughi

The properties of ultracold atomic Bose-Fermi mixtures in external potentials are investigated and the existence of gap solitons of Bose-Fermi mixtures in optical lattices demonstrated. Using a self-consistent approach we compute the energy…

其他凝聚态物理 · 物理学 2009-11-11 Mario Salerno

Using renormalization group methods, we develop a rigorous coarse-grained representation of the dissipative dynamics of quantum excitations propagating inside open macromolecular systems. We show that, at very low spatial resolution, this…

介观与纳米尺度物理 · 物理学 2014-04-23 E. Schneider , P. Faccioli

The theory of Monge-Kantorovich Optimal Mass Transport (OMT) has in recent years spurred a fast developing phase of research in stochastic control, control of ensemble systems, thermodynamics, data science, and several other fields in…

最优化与控制 · 数学 2025-08-14 Mahmoud Abdelgalil , Tryphon T. Georgiou

Noise-assisted transport in quantum systems occurs when quantum time-evolution and decoherence conspire to produce a transport efficiency that is higher than what would be seen in either the purely quantum or purely classical cases. In…

量子物理 · 物理学 2012-08-30 Ivan Kassal , Alán Aspuru-Guzik

Charge and spin density waves are highly correlated electron systems that can transport an electric current. A model is discussed in which a field E induces the creation, by quantum tunneling, of pairs of oppositely charged solitons and…

超导电性 · 物理学 2012-08-27 John H Miller,

This proceedings paper reports on the theoretical modelling of particle acceleration in magnetised turbulent plasmas. It briefly reviews some recent findings obtained from fully kinetic numerical simulations of large-amplitude, semi to…

高能天体物理现象 · 物理学 2025-12-18 M. Lemoine

We study quantum transport in disordered systems with particle-hole symmetric Hamiltonians. The particle-hole symmetry is spontaneously broken after averaging with respect to disorder, and the resulting massless mode is treated in a…

无序系统与神经网络 · 物理学 2021-09-09 Ipsita Mandal , Klaus Ziegler

We study the hopping transport of a quantum particle through finite, randomly diluted percolation clusters in two dimensions. We investigate how the transmission coefficient T behaves as a function of the energy E of the particle, the…

统计力学 · 物理学 2007-05-23 E. Cuansing , H. Nakanishi

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

This work investigates the quantum transport in a narrow constriction acted upon by a finite-range transversely polarized time-dependent electric field. A generalized scattering-matrix method is developed that has incorporated a…

介观与纳米尺度物理 · 物理学 2009-11-11 C. S. Tang , C. S. Chu

We analyze one-dimensional classical and quantum microscopic lattice-gas models governed by a lattice Boltzmann equation at the mesoscopic scale, achieved by ensemble averaging over microscopic realizations. The models are governed by the…

量子物理 · 物理学 2007-05-23 Jeffrey Yepez

We present a numerical study of noise correlations, i.e., density-density correlations in momentum space, in the extended fermionic Hubbard model in one dimension. In experiments with ultracold atoms, these noise correlations can be…

强关联电子 · 物理学 2007-10-29 Andreas Luscher , Andreas Laeuchli , Reinhard M. Noack

This work derives the Navier--Stokes hydrodynamic equations for a model of a confined, quasi-two-dimensional, $s$-component mixture of inelastic, smooth, hard spheres. Using the inelastic version of the revised Enskog theory, macroscopic…

软凝聚态物质 · 物理学 2026-03-27 David González Méndez , Vicente Garzó

We introduce a new and general mechanism for superconductivity in Fermi systems with strong repulsive interaction. Because kinetic terms are small compared to the bare repulsion, the dynamic of charge carriers is constrained by the the…

超导电性 · 物理学 2022-07-22 Valentin Crépel , Liang Fu

We formulate a finite-particle method of mass transport that accounts for general mixed boundary conditions. The particle method couples a geometrically-exact treatment of advection; Wasserstein gradient-flow dynamics; and a…

数值分析 · 数学 2025-03-05 Anna Pandolfi , Ignacio Romero , Michael Ortiz

We study transport in the one-dimensional mass-imbalanced Fermi-Hubbard model at infinite temperature, focusing on the case of strong interactions. Prior theoretical and experimental investigations have revealed unconventionally long…

量子气体 · 物理学 2024-06-03 Thomas G. Kiely , Erich J. Mueller