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相关论文: Topological Defects Formation with Momentum Dissip…

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Antiferromagnetic fluctuations in two dimensions cause a decrease in spectral weight at so-called hot spots associated with the pseudogap in electron-doped cuprates. In the 2D Hubbard model, these hot spots occur when the Vilk criterion is…

强关联电子 · 物理学 2022-06-28 C. Gauvin-Ndiaye , P. -A. Graham , A. -M. S. Tremblay

We extend the ideas of using AdS/CFT to calculate energy loss of extended defects in strongly coupled systems to general holographic metrics. We find the equations of motion governing uniformly moving defects of various dimension and…

高能物理 - 理论 · 物理学 2013-05-30 John F. Fuini , Andreas Karch

The density and correlations of topological defects are investigated numerically in a model of a d=2 elastic medium subject to a periodic quenched random potential. The computed density of defects decreases approximately exponentially with…

无序系统与神经网络 · 物理学 2009-10-31 A. Alan Middleton

Gravitomagnetic charge that can also be referred to as the {\it dual mass} or {\it magnetic mass} is the topological charge in gravity theory. A gravitomagnetic monopole at rest can produce a stationary gravitomagnetic field. Due to the…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Jian Qi Shen

We use large scale simulations to study interacting particles in two dimensions in the presence of both an ac drive and quenched disorder. As a function of ac amplitude, there is a crossover from a low drive regime where the colloid…

统计力学 · 物理学 2009-11-11 C. Reichhardt , C. J. Olson Reichhardt

We propose a new variant model of the modulated reheating. If particles have large scale fluctuations on their velocities, or equivalently their Lorentz factors, the decay rate also fluctuates and the curvature perturbation is induced via…

宇宙学与河外天体物理 · 物理学 2013-05-29 Kazunori Nakayama , Teruaki Suyama

Symmetry-breaking phase transitions may leave behind topological defects \cite{Kibble} with a density dependent on the quench rate \cite{Zurek}. We investigate the dynamics of such quenches for the one-dimensional, Landau-Ginzburg case and…

高能物理 - 唯象学 · 物理学 2014-11-17 Pablo Laguna , Wojciech H. Zurek

Convection in the liquid outer core of the Earth is driven by thermal and chemical perturbations. The main purpose of this study is to examine the impact of double-diffusive convection on magnetic field generation by means of 3D global…

地球物理 · 物理学 2021-05-12 Théo Tassin , Thomas Gastine , Alexandre Fournier

With recent developments in high-precision quantum measurements, the question of whether observations of decoherence from spacetime fluctuations are accessible experimentally arises. Here we investigate the dynamics of bound states…

广义相对论与量子宇宙学 · 物理学 2017-06-06 Teodora Oniga , Charles H. -T. Wang

In this work, we study how the combination of rotation and a topological defect can influence the energy spectrum of a two dimensional electron gas in a strong perpendicular magnetic field. A deviation from the linear behavior of the energy…

介观与纳米尺度物理 · 物理学 2017-09-11 Julio Brandão , Cleverson Filgueiras , Moises Rojas , Fernando Moraes

We propose and support the possibility that the shape of topological density 2-point function in pure-glue QCD is crucially, and possibly entirely, determined by the space-time folding (geometry) of the double-sheet sign-coherent structure…

高能物理 - 格点 · 物理学 2010-01-21 Ivan Horvath , Andrei Alexandru , Thomas Streuer

We study the growth of structures in modified gravity models where the Poisson equation and the relationship between the two Newtonian potentials are modified by explicit functions of space and time. This parameterisation applies to the…

宇宙学与河外天体物理 · 物理学 2012-10-24 Philippe Brax , Patrick Valageas

The quasi-coherent effects in two-dimensional incompressible turbulence are analyzed starting from the test particle trajectories. They can acquire coherent aspects when the stochastic potential has slow time variation and the motion is not…

等离子体物理 · 物理学 2017-04-05 M. Vlad , F. Spineanu

Topological defects such as vortices, dislocations or domain walls define many important effects in superconductivity, superfluidity, magnetism, liquid crystals, and plasticity of solids. Here we address the breakdown of the…

超导电性 · 物理学 2015-12-31 Ahmad Sheikhzada , Alex Gurevich

We study the out-of-equilibrium dynamics of $p$-wave superconducting quantum wires with long-range interactions, when the chemical potential is linearly ramped across the topological phase transition. We show that the heat produced after…

量子物理 · 物理学 2019-11-27 Nicolò Defenu , Giovanna Morigi , Luca Dell'Anna , Tilman Enss

We study the dynamics of topological defects in continuum theories governed by a free energy minimization principle, building on our recently developed framework [Romano J, Mahault B and Golestanian R 2023 J. Stat. Mech.: Theory Exp.…

软凝聚态物质 · 物理学 2024-02-26 Jacopo Romano , Benoît Mahault , Ramin Golestanian

We describe energy--momentum conservation in relativistic perturbation theory in general FRW backgrounds with causal source terms, such as the presence of cosmic defect networks. We provide a prescription for a linear energy--momentum…

天体物理学 · 物理学 2009-11-07 G. Amery , E. P. S. Shellard

We investigate topography-driven generation of defects in liquid crystals films coating frozen surfaces of spatially varying Gaussian curvature whose topology does not automatically require defects in the ground state. We study in…

软凝聚态物质 · 物理学 2009-11-10 Vincenzo Vitelli , David R. Nelson

Deconfined quantum criticality (DQC) arises from fractionalization of quasi-particles and leads to fascinating behaviors beyond the Landau-Ginzburg-Wilson description of phase transitions. Here, we study the critical dynamics when driving a…

强关联电子 · 物理学 2025-04-15 Yu-Rong Shu , Shao-Kai Jian , Anders W. Sandvik , Shuai Yin

Universal scaling laws govern the density of topological defects generated while crossing an equilibrium continuous phase transition. The Kibble-Zurek mechanism (KZM) predicts the dependence on the quench time for slow quenches. By…

统计力学 · 物理学 2023-12-07 Wei-can Yang , Makoto Tsubota , Adolfo del Campo , Hua-Bi Zeng