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相关论文: Wegner bounds for N-body interacting Bernoulli-And…

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$N$-body non efimovian bound or quasi-bound states for particles with short range interactions are considered in arbitrary dimensions. The different resonance regimes near the threshold are depicted by using a generalization of the…

量子气体 · 物理学 2024-10-09 Ludovic Pricoupenko

In the present note we show dynamical localization for an Anderson model with missing sites in a discrete setting at the bottom of the spectrum in arbitrary dimension $d$. In this model, the random potential is defined on a relatively dense…

数学物理 · 物理学 2013-04-30 Constanza Rojas-Molina

A two-dimensional electron gas in a high magnetic field displays macroscopically degenerate Landau levels, which can be split into Hofstadter subbands by means of a weak periodic potential. By carefully engineering such a potential, one can…

无序系统与神经网络 · 物理学 2019-08-21 Akshay Krishna , Matteo Ippoliti , R. N. Bhatt

We consider interacting electrons in a one dimensional lattice with an incommensurate Aubry-Andre' potential in the regime when the single-particle eigenstates are localized. We rigorously establish persistence of ground state localization…

强关联电子 · 物理学 2015-11-04 Vieri Mastropietro

We propose a realization of the one-dimensional random dimer model and certain N-leg generalizations using cold atoms in an optical lattice. We show that these models exhibit multiple delocalization energies that depend strongly on the…

量子气体 · 物理学 2011-11-21 T. A. Sedrakyan , J. P. Kestner , S. Das Sarma

The ground state properties and low-lying excitations of a (quasi) one-dimensional system of longitudinally confined interacting bosons are studied. This is achieved by extending Haldane's harmonic-fluid description to open boundary…

介观与纳米尺度物理 · 物理学 2009-11-07 M. A. Cazalilla

We study analytically how noninteracting weakly active particles, for which passive Brownian diffusion cannot be neglected and activity can be treated perturbatively, distribute and behave near boundaries in various geometries. In…

软凝聚态物质 · 物理学 2021-05-05 Michael Wang

One of quantum physics' fundamental, but largely unsolved, problems is the computation of the correlation functions in many-body systems. In this paper we address this problem in the case of one-dimensional spinor gases with repulsive…

量子气体 · 物理学 2024-11-12 Ovidiu I. Patu

We argue that the dynamics of particle imbalance in quadratic fermionic models is, for the majority of initial many-body product states in site occupation basis, virtually indistinguishable from the dynamics of survival probabilities of…

统计力学 · 物理学 2024-08-02 Miroslav Hopjan , Lev Vidmar

Strongly-interacting ultra-cold atoms in tight-binding optical lattice potentials provide an ideal platform to realize the fundamental Hubbard model. Here, after outlining the elementary single particle solution, we review and expand our…

量子气体 · 物理学 2017-08-23 David Petrosyan , Manuel Valiente

The disorder-induced localization of few bosons interacting via a contact potential is investigated through the analysis of the level-spacing statistics familiar from random matrix theory. The model we consider is defined in a continuum and…

量子气体 · 物理学 2019-07-04 Pere Mujal , Artur Polls , Sebastiano Pilati , Bruno Juliá-Díaz

We report partial progress on the weak coupling limit behavior of observables for the periodic quantum Lorentz gas. Our results indicate that for certain observables, the limit behavior is trivial and can be described via a transport…

数学物理 · 物理学 2026-01-13 Massimiliano Gubinelli , Vishnu Sanjay

Macroscopic Wigner islands present an interesting complementary approach to explore the properties of two-dimensional confined particles systems. In this work, we characterize theoretically and experimentally the interaction between their…

介观与纳米尺度物理 · 物理学 2009-11-11 P. Galatola , G. Coupier , M. Saint Jean , J. -B. Fournier , C. Guthmann

Density oscillations of confined one-dimensional Fermi gases of contact repulsive interactions in a continuous space are discussed within Bethe-ansatz-based spin-density-functional theory. The results are compared against the exact…

强关联电子 · 物理学 2012-12-27 Gao Xianlong

A new type of perturbation expansion in the mixing $V$ of localized orbitals with a conduction-electron band in the $U\to\infty$ Anderson model is presented. It is built on Feynman diagrams obeying standard rules. The local correlations of…

凝聚态物理 · 物理学 2009-10-22 Jan Brinckmann

We place limits on scalar and vector unparticle couplings to electrons and neutrinos using data from reactor neutrino experiments originally designed to search for neutrino magnetic moment. Upper bounds on Standard Model lepton-scalar…

高能物理 - 唯象学 · 物理学 2008-11-26 A. B. Balantekin , K. O. Ozansoy

We consider the multi-particle Anderson tight-binding model and prove that its lower spectral edge is non-random under some mild assumptions on the inter-particle interaction and the random external potential. We also adapt to the low…

数学物理 · 物理学 2013-12-30 Trésor Ekanga

The interplay of magnetic fields and interacting particles can lead to exotic phases of matter exhibiting topological order and high degrees of spatial entanglement. While these phases were discovered in a solid-state setting, recent…

The interacting shell model, a configuration-interaction method, is a venerable approach for low-lying nuclear structure calculations; but it is hampered by the exponential growth of its basis dimension as one increases the single-particle…

核理论 · 物理学 2024-09-05 Oliver C. Gorton , Calvin W. Johnson

We consider a quantum particle in a one-dimensional disordered lattice with Anderson localization, in the presence of multi-frequency perturbations of the onsite energies. Using the Floquet representation, we transform the eigenvalue…

无序系统与神经网络 · 物理学 2016-06-15 H. Hatami , C. Danieli , J. D. Bodyfelt , S. Flach