Higher-order quantum bright solitons in Bose-Einstein condensates show truly quantum emergent behavior
Quantum Gases
2016-12-19 v1 Pattern Formation and Solitons
Quantum Physics
Abstract
When an interaction quench by a factor of four is applied to an attractive Bose-Einstein condensate, a higher-order quantum bright soliton exhibiting robust oscillations is predicted in the semiclassical limit by the Gross-Pitaevskii equation. Combining matrix-product state simulations of the Bose-Hubbard Hamiltonian with analytical treatment via the Lieb-Liniger model and the eigenstate thermalization hypothesis, we show these oscillations are absent. Instead, one obtains a large stationary soliton core with a small thermal cloud, a smoking-gun signal for non-semiclassical behavior on macroscopic scales and therefore a fully quantum emergent phenomenon.
Keywords
Cite
@article{arxiv.1612.05545,
title = {Higher-order quantum bright solitons in Bose-Einstein condensates show truly quantum emergent behavior},
author = {Christoph Weiss and Lincoln D. Carr},
journal= {arXiv preprint arXiv:1612.05545},
year = {2016}
}
Comments
7 pages, 4 figures