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Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos

Gertjerenken, B.; Arlinghaus, S.; Teichmann, N.; Weiss, C.

Authors

B. Gertjerenken

S. Arlinghaus

N. Teichmann

C. Weiss



Abstract

In a parameter regime for which the mean-field (Gross-Pitaevskii) dynamics becomes chaotic, mesoscopic quantum superpositions in phase space can occur in a double-well potential, which is shaken periodically. For experimentally realistic initial states, such as the ground state of some 100 atoms, the emergence of mesoscopic quantum superpositions in phase space is investigated numerically. It is shown to be reproducible, even if the initial conditions change slightly. Although the final state is not a perfect superposition of two distinct phase states, the superposition is reached an order of magnitude faster than in the case of the collapse-and-revival phenomenon. Furthermore, a generator of entanglement is identified.

Citation

Gertjerenken, B., Arlinghaus, S., Teichmann, N., & Weiss, C. (2010). Reproducible mesoscopic superpositions of Bose-Einstein condensates and mean-field chaos. Physical Review A, 82(2), https://doi.org/10.1103/physreva.82.023620

Journal Article Type Article
Publication Date Aug 30, 2010
Deposit Date Jul 29, 2014
Journal Physical Review A
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 82
Issue 2
DOI https://doi.org/10.1103/physreva.82.023620


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