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Using the adaptive time-dependent density matrix renormalization group, we study the time evolution of density correlations of interacting spinless fermions on a one-dimensional lattice after a sudden change in the interaction strength.…

强关联电子 · 物理学 2009-04-17 Salvatore R. Manmana , Stefan Wessel , Reinhard M. Noack , Alejandro Muramatsu

We investigate the spread of correlations carried by an excitation in a 1-dimensional lattice system with high on-site energy disorder and long-range couplings with a power-law dependence on the distance ($\propto r^{-\mu}$). The increase…

无序系统与神经网络 · 物理学 2022-06-01 Karol Kawa , Paweł Machnikowski

We investigate the time evolution towards the asymptotic steady state of a one dimensional interacting system after a quantum quench. We show that at finite time the latter induces entanglement between right- and left- moving density…

强关联电子 · 物理学 2017-08-18 Alessio Calzona , Filippo Maria Gambetta , Fabio Cavaliere , Matteo Carrega , Maura Sassetti

We study the non-equilibrium dynamics of the Luttinger model after suddenly turning on and off the bare Coulomb interaction between the fermions. We analyze several correlation functions such as the one particle density matrix and vertex…

强关联电子 · 物理学 2015-06-12 N. Nessi , A. Iucci

In this thesis, we have investigated the spreading of quantum correlations in isolated lattice models with short- or long-range interactions driven far from equilibrium via sudden global quenches. A general theoretical approach relying on a…

量子物理 · 物理学 2024-10-07 Julien Despres

Using a Luttinger liquid theory we investigate the time evolution of the particle density of a one-dimensional fermionic system with open boundaries and subject to a finite duration quench of the inter-particle interaction. We provide…

强关联电子 · 物理学 2016-08-16 S. Porta , F. M. Gambetta , F. Cavaliere , N. Traverso Ziani , M. Sassetti

We investigate dynamics arising after an interaction quench in the quantum sine-Gordon model for a one-dimensional system initially prepared in a spatially inhomogeneous domain wall state. We study the time-evolution of the density, current…

强关联电子 · 物理学 2015-05-20 Jarrett Lancaster , Emanuel Gull , Aditi Mitra

A renormalization group approach is used to show that a one dimensional system of bosons subject to a lattice quench exhibits a finite-time dynamical phase transition where an order parameter within a light-cone increases as a non-analytic…

强关联电子 · 物理学 2015-06-05 Aditi Mitra

The relaxation of uniform quantum systems with finite-range interactions after a quench is generically driven by the ballistic propagation of long-lived quasi-particle excitations triggered by a sufficiently small quench. Here we…

量子气体 · 物理学 2018-02-07 Irénée Frérot , Piero Naldesi , Tommaso Roscilde

Starting from a product initial state, equal-time correlations in nonrelativistic quantum lattice models propagate within a lightcone-like causal region. The presence of entanglement in the initial state can modify this behavior, enhancing…

量子物理 · 物理学 2015-12-21 Michael Kastner

Using the adaptive time-dependent density-matrix renormalization group method, we study the time evolution of strongly correlated spinless fermions on a one-dimensional lattice after a sudden change of the interaction strength. For certain…

其他凝聚态物理 · 物理学 2007-06-13 S. R. Manmana , S. Wessel , R. M. Noack , A. Muramatsu

We study the relaxation dynamics of interacting, one-dimensional fermions with band curvature after a weak quench in the interaction parameter. After the quench, the system is described by a non-equilibrium initial state, which relaxes…

量子气体 · 物理学 2016-07-11 Michael Buchhold , Markus Heyl , Sebastian Diehl

We explore how correlations evolve in a gas of lattice bosons when the lattice depth is rapidly reduced. We find a simple closed form expression for the static structure factor in the limit of vanishing interactions. The corresponding…

量子气体 · 物理学 2013-07-08 Stefan S. Natu , Erich J. Mueller

We study the time evolution of correlation functions in long-range interacting quantum Ising models. For a large class of initial conditions, exact analytic results are obtained in arbitrary lattice dimension, both for ferromagnetic and…

量子物理 · 物理学 2013-08-07 Mauritz van den Worm , Brian C. Sawyer , John J. Bollinger , Michael Kastner

We analyze the propagation of correlations after a sudden interaction change in a strongly interacting quantum system in contact with an environment. In particular, we consider an interaction quench in the Bose-Hubbard model, deep within…

量子气体 · 物理学 2018-03-07 Jean-Sebastien Bernier , Ryan Tan , Lars Bonnes , Chu Guo , Dario Poletti , Corinna Kollath

We investigate the response of a one-dimensional Bose gas to a slow increase of its interaction strength. We focus on the rich dynamics of equal-time single-particle correlations treating the Lieb-Liniger model within a bosonization…

量子气体 · 物理学 2016-09-27 Jean-Sebastien Bernier , Roberta Citro , Corinna Kollath , Edmond Orignac

We study the sudden expansion of strongly correlated fermions in a one-dimensional lattice, utilizing the time-dependent density-matrix renormalization group method. Our focus is on the behavior of experimental observables such as the…

强关联电子 · 物理学 2008-07-18 F. Heidrich-Meisner , M. Rigol , A. Muramatsu , A. E. Feiguin , E. Dagotto

We consider the time evolution of local observables after an interaction quench in the repulsive Lieb-Liniger model. The system is initialized in the ground state for vanishing interaction and then time-evolved with the Lieb-Liniger…

统计力学 · 物理学 2021-09-28 Etienne Granet , Fabian H. L. Essler

We investigate the wave packet dynamics of a pair of particles that undergoes a rapid change of scattering length. The short-range interactions are modeled in the zero-range limit, where the quench is accomplished by switching the boundary…

量子气体 · 物理学 2016-08-10 John P. Corson , John L. Bohn

In two recent articles a detailed study has been presented of the out of equilibrium dynamics of an infinite system of self-gravitating points initially located on a randomly perturbed lattice. In this article we extend the treatment of the…

统计力学 · 物理学 2009-11-13 Thierry Baertschiger , Michael Joyce , Francesco Sylos Labini , Bruno Marcos
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