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Title: Motion of a distinguishable Impurity in the Bose gas: Arrested expansion without a lattice and impurity snaking

Journal Article · · Physical Review Letters
 [1];  [2]
  1. Univ. of Amsterdam, Amsterdam (The Netherlands)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)

We consider the real-time dynamics of an initially localized distinguishable impurity injected into the ground state of the Lieb-Liniger model. Focusing on the case where integrability is preserved, we numerically compute the time evolution of the impurity density operator in regimes far from analytically tractable limits. We find that the injected impurity undergoes a stuttering motion as it moves and expands. For an initially stationary impurity, the interaction-driven formation of a quasibound state with a hole in the background gas leads to arrested expansion—a period of quasistationary behavior. In conclusion, when the impurity is injected with a finite center-of-mass momentum, the impurity moves through the background gas in a snaking manner, arising from a quantum Newton’s cradlelike scenario where momentum is exchanged back and forth between the impurity and the background gas.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704; AC02-98CH10886; SC0012704
OSTI ID:
1263909
Alternate ID(s):
OSTI ID: 1246179
Report Number(s):
BNL-112265-2016-JA; PRLTAO; R&D Project: PO015; KC0202030
Journal Information:
Physical Review Letters, Vol. 116, Issue 14; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

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One dimensional Bosons: From Condensed Matter Systems to Ultracold Gases text January 2011
Equilibrium thermodynamic properties of interacting two-component bosons in one dimension text January 2011
Local correlations in the 1D Bose gas from a scaling limit of the XXZ chain text January 2011
Dynamics and evaporation of defects in Mott-insulating clusters of boson pairs text January 2011
Dynamical arrest of ultracold lattice fermions text January 2012
Dynamics of an impurity in a one-dimensional lattice text January 2012
Quantum Flutter: Signatures and Robustness text January 2013
Self trapping in the two-dimensional Bose-Hubbard model text January 2013
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Quench Dynamics in a Model with Tuneable Integrability Breaking text January 2013
Correspondence between dark solitons and the type II excitations of Lieb-Liniger model text January 2014
Kinetic theory for a mobile impurity in a degenerate Tonks-Girardeau gas text January 2014
Quantum Boltzmann equation for a mobile impurity in a degenerate Tonks-Girardeau gas text January 2014
Self-localized state and solitons in a Bose-Einstein-condensate-impurity mixture at finite temperature text January 2014
Pre-relaxation in weakly interacting models text January 2015
Real-Time Dynamics of an Impurity in an Ideal Bose Gas in a Trap text January 2015
Form factors of local operators in a one-dimensional two-component Bose gas text January 2015
Dynamical depinning of a Tonks Girardeau gas text January 2015
Dynamical Quasicondensation of Hard-Core Bosons at Finite Momenta text January 2015
Dynamical density-density correlations in the one-dimensional Bose gas text January 2006
The Hubbard chain: Lieb-Wu equations and norm of the eigenfunctions text January 1999
Determinant representation for dynamical correlation functions of the Quantum nonlinear Schrödinger equation text January 1996

Cited By (12)

Effective approach to impurity dynamics in one-dimensional trapped Bose gases journal July 2019
Dynamics of a Mobile Impurity in a One-Dimensional Bose Liquid journal September 2016
Bose polaron as an instance of quantum Brownian motion journal September 2017
Correlated quantum dynamics of two quenched fermionic impurities immersed in a Bose-Einstein condensate journal August 2019
Coalescence of Two Impurities in a Trapped One-dimensional Bose Gas journal August 2018
Quench Dynamics and Orthogonality Catastrophe of Bose Polarons journal May 2019
Topological states in the Kronig–Penney model with arbitrary scattering potentials journal January 2019
Dynamics of a Mobile Impurity in a One-Dimensional Bose Liquid text January 2016
Approximate light cone effects in a non-relativistic quantum field theory after a local quench text January 2016
Coalescence of Two Impurities in a Trapped One-dimensional Bose Gas text January 2017
Topological states in the Kronig-Penney model with arbitrary scattering potentials text January 2018
Correlated quantum dynamics of two quenched fermionic impurities immersed in a Bose-Einstein Condensate text January 2019

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