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From short-time diffusive to long-time ballistic dynamics: The unusual center-of-mass motion of quantum bright solitons

Weiss, C.; Gardiner, S.A.; Breuer, H.-P.

From short-time diffusive to long-time ballistic dynamics: The unusual center-of-mass motion of quantum bright solitons Thumbnail


Authors

C. Weiss

H.-P. Breuer



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.

Citation

Weiss, C., Gardiner, S., & Breuer, H. (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), Article 063616. https://doi.org/10.1103/physreva.91.063616

Journal Article Type Article
Acceptance Date May 20, 2015
Publication Date Jun 15, 2015
Deposit Date Jun 22, 2015
Publicly Available Date Mar 28, 2024
Journal Physical Review A
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 91
Issue 6
Article Number 063616
DOI https://doi.org/10.1103/physreva.91.063616
Related Public URLs http://arxiv.org/abs/1407.7633

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Copyright 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.





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