Weiss, C. and Gardiner, S.A. and Breuer, H.-P. (2015) 'From short-time diffusive to long-time ballistic dynamics : the unusual center-of-mass motion of quantum bright solitons.', Physical review A., 91 (6). 063616.
Abstract
Brownian motion is ballistic on short time scales and diffusive on long time scales. Our theoretical investigations indicate that one can observe the exact opposite—an “anomalous diffusion process” where initially diffusive motion becomes ballistic on longer time scales—in an ultracold atomic system with a size comparable to macromolecules. This system is the center-of-mass motion of a quantum matter-wave bright soliton for which the dominant source of decoherence is three-particle losses. Our simulations show that such unusual center-of-mass dynamics should be observable on experimentally accessible time scales.
| Item Type: | Article |
|---|---|
| Full text: | (VoR) Version of Record Download PDF (451Kb) |
| Status: | Peer-reviewed |
| Publisher Web site: | http://dx.doi.org/10.1103/PhysRevA.91.063616 |
| Publisher statement: | Reprinted with permission from the American Physical Society: Physical Review A 91, 063616 © 2015 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society. |
| Date accepted: | 20 May 2015 |
| Date deposited: | 26 June 2015 |
| Date of first online publication: | June 2015 |
| Date first made open access: | No date available |
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