One-dimensional Bose gas dynamics: Breather relaxation

Bogdan Opanchuk and Peter D. Drummond
Phys. Rev. A 96, 053628 – Published 27 November 2017

Abstract

One-dimensional Bose gases are a useful testing ground for quantum dynamics in many-body theory. They allow experimental tests of many-body theory predictions in an exponentially complex quantum system. Here we calculate the dynamics of a higher-order soliton in the mesoscopic case of N=103104 particles, giving predictions for quantum soliton breather relaxation. These quantum predictions use a truncated Wigner approximation, which is a 1/N expansion, in a regime where other exactly known predictions are recovered to high accuracy. Such dynamical calculations are testable in forthcoming Bose-Einstein-condensate experiments.

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  • Received 8 August 2017

DOI:https://doi.org/10.1103/PhysRevA.96.053628

©2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Bogdan Opanchuk and Peter D. Drummond

  • Centre for Quantum and Optical Science, Swinburne University of Technology, Melbourne 3122, Australia

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Issue

Vol. 96, Iss. 5 — November 2017

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