Journal article
Dissipation induced nonstationarity in a quantum gas
- Abstract:
- Nonstationary longtime dynamics was recently observed in a driven two-component Bose-Einstein condensate coupled to an optical cavity [N. Dogra, M. Landini, K. Kroeger, L. Hruby, T. Donner, and T. Esslinger, arXiv:1901.05974] and analyzed in mean-field theory. We solve the underlying model in the thermodynamic limit and show that this system is always dynamically unstable—even when mean-field theory predicts stability. Instabilities always occur in higher-order correlation functions leading to squeezing and entanglement induced by cavity dissipation. The dynamics may be understood as the formation of a dissipative time crystal. We use perturbation theory for finite system sizes to confirm the nonstationary behavior.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 739.4KB, Terms of use)
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- Publisher copy:
- 10.1103/physrevlett.123.260401
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Letters More from this journal
- Volume:
- 123
- Issue:
- 26
- Article number:
- 260401
- Publication date:
- 2019-12-23
- Acceptance date:
- 2019-12-05
- DOI:
- EISSN:
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1079-7114
- ISSN:
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0031-9007
- Language:
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English
- Keywords:
- Pubs id:
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pubs:1011666
- UUID:
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uuid:ae3465dd-682f-4e04-b5e9-f618774c28ad
- Local pid:
-
pubs:1011666
- Source identifiers:
-
1011666
- Deposit date:
-
2019-12-30
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2019
- Rights statement:
- © 2019 American Physical Society.
- Notes:
- This is the publisher's version of the article. The final version is available online from the American Physical Society at: https://doi.org/10.1103/PhysRevLett.123.260401
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