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Title: Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds

Abstract

We have performed a systematic study quantifying the variation of solitary wave behavior from that of an ordered cloud resembling a “crystalline” configuration to that of a disordered state that can be characterized as a soliton “gas.” As our illustrative examples, we use both one-component, as well as two-component, one-dimensional atomic gases very close to zero temperature, where in the presence of repulsive interatomic interactions and of a parabolic trap, a cloud of dark (dark-bright) solitons can form in the one- (two-) component system. We corroborate our findings through three distinct types of approaches, namely a Gross-Pitaevskii type of partial differential equation, particle-based ordinary differential equations describing the soliton dynamical system, and Monte Carlo simulations for the particle system. In addition, we define an “empirical” order parameter to characterize the order of the soliton lattices and study how this changes as a function of the strength of the “thermally” (i.e., kinetically) induced perturbations. As may be anticipated by the one-dimensional nature of our system, the transition from order to disorder is gradual without, apparently, a genuine phase transition ensuing in the intermediate regime.

Authors:
 [1];  [2]
  1. Univ. of Massachusetts, Amherst, MA (United States)
  2. Univ. of Massachusetts, Amherst, MA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1233262
Report Number(s):
LA-UR-14-29477
Journal ID: ISSN 1539-3755; PLEEE8; TRN: US1600429
Grant/Contract Number:  
DMR-1208046; FA950-12-1-0332; IRSES-605096; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
Additional Journal Information:
Journal Volume: 91; Journal Issue: 3; Journal ID: ISSN 1539-3755
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 97 MATHEMATICS AND COMPUTING

Citation Formats

Wang, Wenlong, and Kevrekidis, P. G. Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds. United States: N. p., 2015. Web. doi:10.1103/PhysRevE.91.032905.
Wang, Wenlong, & Kevrekidis, P. G. Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds. United States. https://doi.org/10.1103/PhysRevE.91.032905
Wang, Wenlong, and Kevrekidis, P. G. Mon . "Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds". United States. https://doi.org/10.1103/PhysRevE.91.032905. https://www.osti.gov/servlets/purl/1233262.
@article{osti_1233262,
title = {Transitions from order to disorder in multiple dark and multiple dark-bright soliton atomic clouds},
author = {Wang, Wenlong and Kevrekidis, P. G.},
abstractNote = {We have performed a systematic study quantifying the variation of solitary wave behavior from that of an ordered cloud resembling a “crystalline” configuration to that of a disordered state that can be characterized as a soliton “gas.” As our illustrative examples, we use both one-component, as well as two-component, one-dimensional atomic gases very close to zero temperature, where in the presence of repulsive interatomic interactions and of a parabolic trap, a cloud of dark (dark-bright) solitons can form in the one- (two-) component system. We corroborate our findings through three distinct types of approaches, namely a Gross-Pitaevskii type of partial differential equation, particle-based ordinary differential equations describing the soliton dynamical system, and Monte Carlo simulations for the particle system. In addition, we define an “empirical” order parameter to characterize the order of the soliton lattices and study how this changes as a function of the strength of the “thermally” (i.e., kinetically) induced perturbations. As may be anticipated by the one-dimensional nature of our system, the transition from order to disorder is gradual without, apparently, a genuine phase transition ensuing in the intermediate regime.},
doi = {10.1103/PhysRevE.91.032905},
journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics},
number = 3,
volume = 91,
place = {United States},
year = {Mon Mar 09 00:00:00 EDT 2015},
month = {Mon Mar 09 00:00:00 EDT 2015}
}

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Cited by: 13 works
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Works referencing / citing this record:

Dark–bright soliton dynamics beyond the mean-field approximation
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