dorsal/arxiv
View SchemaSpontaneous emergence of angular momentum Josephson oscillations in coupled annular Bose-Einstein condensates
| Authors | Igor Lesanovsky, Wolf von Klitzing |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0609133 |
| URL | https://arxiv.org/abs/quant-ph/0609133 |
| DOI | 10.1103/PhysRevLett.98.050401 |
| Journal | Phys. Rev. Lett. 98-5, 050401 (2007) |
Abstract
We investigate the nonlinear dynamics of two coupled annular Bose-Einstein condensates (BECs). For certain values of the coupling strength the nonrotating ground state is unstable with respect to fluctuations in the higher angular momentum modes. The two branched Bogoliubov spectrum exhibits distinct regions of instability enabling one to selectively occupy certain angular momentum modes. For sufficiently long evolution times angular momentum Josephson oscillations spontaneously appear, breaking the initial chiral symmetry of the BECs.
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"abstract": "We investigate the nonlinear dynamics of two coupled annular Bose-Einstein\ncondensates (BECs). For certain values of the coupling strength the nonrotating\nground state is unstable with respect to fluctuations in the higher angular\nmomentum modes. The two branched Bogoliubov spectrum exhibits distinct regions\nof instability enabling one to selectively occupy certain angular momentum\nmodes. For sufficiently long evolution times angular momentum Josephson\noscillations spontaneously appear, breaking the initial chiral symmetry of the\nBECs.",
"arxiv_id": "quant-ph/0609133",
"authors": [
"Igor Lesanovsky",
"Wolf von Klitzing"
],
"categories": [
"quant-ph",
"cond-mat.quant-gas"
],
"doi": "10.1103/PhysRevLett.98.050401",
"journal_ref": "Phys. Rev. Lett. 98-5, 050401 (2007)",
"title": "Spontaneous emergence of angular momentum Josephson oscillations in coupled annular Bose-Einstein condensates",
"url": "https://arxiv.org/abs/quant-ph/0609133"
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