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相关论文: Knock-on processes in superfluid vortex avalanches…

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Plastic deformation of crystals proceeds through a sequence of intermittent slip avalanches with scale-free (power-law) size distribution. On macroscopic scales, however, plastic flow is known to be smooth and homogeneous. In the present…

统计力学 · 物理学 2009-11-13 Michael Zaiser , Nikos Nikitas

The collapse of a collisionless self-gravitating system, with the fast achievement of a quasi-stationary state, is driven by violent relaxation, with a typical particle interacting with the time-changing collective potential. It is…

星系天体物理 · 物理学 2017-09-21 Leandro Beraldo e Silva , Walter de Siqueira Pedra , Laerte Sodré , Eder Perico , Marcos Lima

Dynamics of simplest vortex knots, unknots, and links of torus type inside an atomic Bose-Einstein condensate in anisotropic harmonic trap at zero temperature has been numerically simulated using three-dimensional Gross-Pitaevskii equation.…

量子气体 · 物理学 2019-01-04 Victor P. Ruban

Earthquakes are complex phenomena characterized by some fundamental seismic laws. However, under the framework of brittle fracture in disordered material, these universal scaling behaviors, especially for critical exponents, are still far…

地球物理 · 物理学 2018-07-10 Hao Lin , HaiYing Wang , Chunsheng Luc , LanHong Dai

We numerically analyse the behavior of the full distribution of collective observables in quantum spin chains. While most of previous studies of quantum critical phenomena are limited to the first moments, here we demonstrate how quantum…

统计力学 · 物理学 2016-10-25 M. Moreno-Cardoner , J. F. Sherson , G. De Chiara

We investigate the role of vortices in the decay of persistent current states of annular atomic superfluids by solving numerically the Gross-Pitaevskii equation, and we directly compare our results with experimental data from Ref. [1]. We…

量子气体 · 物理学 2023-10-19 Klejdja Xhani , Giulia Del Pace , Francesco Scazza , Giacomo Roati

This paper develops the large deviations theory for the point process associated with the Euclidean volume of $k$-nearest neighbor balls centered around the points of a homogeneous Poisson or a binomial point processes in the unit cube. Two…

概率论 · 数学 2022-10-25 Christian Hirsch , Taegyu Kang , Takashi Owada

Pulsar glitches offer an insight into the dynamics of superfluids in the high density interior of a neutron star. To model these phenomena, however, one needs to have an understanding of the dynamics of a turbulent array of superfluid…

高能天体物理现象 · 物理学 2020-09-09 Brynmor Haskell , Danai Antonopoulou , Carlo Barenghi

The mean-field Gross-Pitaevskii equation with repulsive interactions exhibits frictionless flow when stirred by an obstacle below a critical velocity. Here we go beyond the mean-field approximation to examine the influence of quantum…

量子气体 · 物理学 2021-05-06 Chao Feng , Matthew J. Davis

Studies involving vortex dynamics and their interaction with pinning centers are an important ingredient to reach higher critical currents in superconducting materials. The vortex distribution around arrays of engineered defects, such as…

We are interested in the structure of large Bienaym\'e-Galton-Watson random trees whose offspring distribution is critical and falls within the domain of attraction of a stable law of index $\alpha=1$. In stark contrast to the case $\alpha…

概率论 · 数学 2018-11-22 Igor Kortchemski , Loïc Richier

We study a system of penetrable bosons on a line, focusing on the high-density/weak-interaction regime, where the ground state is, to a good approximation, a condensate. Under compression, the system clusterizes at zero temperature, i.e.,…

量子气体 · 物理学 2018-12-07 S. Prestipino , A. Sergi , E. Bruno

In this work we consider vortex lattices in rotating Bose-Einstein Condensates composed of two species of bosons having different masses. Previously [1] it was claimed that the vortices of the two species form bound pairs and the two vortex…

量子气体 · 物理学 2012-02-22 Ryan Barnett , Edward Chen , Gil Refael

In the analysis of large random wireless networks, the underlying node distribution is almost ubiquitously assumed to be the homogeneous Poisson point process. In this paper, the node locations are assumed to form a Poisson clustered…

信息论 · 计算机科学 2010-10-11 RadhaKrishna Ganti , Martin Haenggi

We develop a dissipation-based framework for earthquake rupture on homogeneous faults that explicitly separates the onset of unstable slip from the conditions required for self-sustained rupture propagation. This distinction explains the…

地球物理 · 物理学 2026-02-02 Didier Sornette , Xueting Wei , Xiaofei Chen

We introduce a dissipation term in the Gross-Pitaevskii equation that describes the stimulated relaxation of condensed bosons due to scattering with a different type of particles. This situation applies to Bose-Einstein condensates of…

量子气体 · 物理学 2010-08-02 Michiel Wouters , Vincenzo Savona

We investigate turbulent spin-down dynamics in self-gravitating Bose-Einstein condensates, comparing purely bosonic and axionic (higher-order interacting) systems. Through simulations of the Gross-Pitaevskii-Poisson system, we study…

The propagation of an interfacial crack along a heterogeneous weak plane of a transparent Plexiglas block is followed using a high resolution fast camera. We show that the fracture front dynamics is governed by local and irregular…

材料科学 · 物理学 2007-05-23 Knut Jørgen Måløy , Stéphane Santucci , Jean Schmittbuhl , Renaud Toussaint

We study two-dimensional quantum turbulence in miscible binary Bose-Einstein condensates in either a harmonic trap or a steep-wall trap through the numerical simulations of the Gross-Pitaevskii equations. The turbulence is generated through…

We study the motion of superfluid vortices with filled massive cores. Previous point-vortex models already pointed out the impact of the core mass on the vortex dynamical properties, but relied on an assumption that is questionable in many…

量子气体 · 物理学 2023-09-06 Alice Bellettini , Andrea Richaud , Vittorio Penna