Non-autonomous bright-dark solitons and Rabi oscillations in multi-component Bose-Einstein condensates
Journal of Physics A: Mathematical and Theoretical, ISSN: 1751-8121, Vol: 46, Issue: 47
2013
- 25Citations
- 8Captures
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Article Description
We study the dynamics of non-autonomous bright-dark matter-wave solitons in two- and three-component Bose-Einstein condensates. Our setting includes a time-dependent parabolic potential and scattering length, as well as Rabi coupling of the separate hyperfine states. By means of a similarity transformation, we transform the non-autonomous coupled Gross-Pitaevskii equations into the completely integrable Manakov model with defocusing nonlinearity, and construct the explicit form of the non-autonomous soliton solutions. The propagation characteristics for the one-soliton state, and collision scenarios for multiple soliton states are discussed in detail for two types of time-dependent nonlinearities: a kink-like one and a periodically modulated one, with appropriate time-dependence of the trapping potential. We find that in the two-component condensates the nature of soliton propagation is determined predominantly by the nature of the nonlinearity, as well as the temporal modulation of the harmonic potential; switching in this setting is essentially due to Rabi coupling. We also perform direct numerical simulation of the non-autonomous two-component coupled Gross-Pitaevskii equations to corroborate our analytical predictions. More interestingly, in the case of the three-component condensates, we find that the solitons can lead to collision-induced energy switching (energy sharing collision), that can be profitably used to control Rabi switching or vice versa. An interesting possibility of reversal of the nature of the constituent soliton, i.e., bright (dark) into dark (bright) due to Rabi coupling is demonstrated in the three-component setting. © 2013 IOP Publishing Ltd.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84887832311&origin=inward; http://dx.doi.org/10.1088/1751-8113/46/47/475201; https://iopscience.iop.org/article/10.1088/1751-8113/46/47/475201; http://stacks.iop.org/1751-8121/46/i=47/a=475201/pdf; http://stacks.iop.org/1751-8121/46/i=47/a=475201?key=crossref.d5e6c82be67c9ef0c9f95852f8a407c6; https://dx.doi.org/10.1088/1751-8113/46/47/475201; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=b7647109-b6a0-4c14-ab57-7538e0f5f366&ssb=87910215070&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1751-8113%2F46%2F47%2F475201&ssi=93692e46-8427-46dc-897c-3bdab759414b&ssk=support@shieldsquare.com&ssm=719116733321572461204397929900322146&ssn=3e3d4779186fd71d4d873d426f0a012874ad17f9ea44-4e1f-4e35-bc83af&sso=6d74315e-f9d9f87a371f63b60cfaee120541852cd67d5c346ca3b188&ssp=29944348271719384899171973897980322&ssq=74062749136089864785005699814381105967255&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBjMGI2MzM1NC00OGRkLTRjNTUtODVmZS00NzZmMjgxYzE5ZDgxNzE5MzA1Njk5NDA1NDg1NjYwNjIzLTBjYWI1ZmRiZGVjNDFiODExMjA0MzAiLCJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwMWUxYTVkMGQtYjRlNi00ZTQ0LWFmYTgtNzUxMTFmZjg0ZDlmNi0xNzE5MzA1Njk5NDA1NDg1NjYwNjIzLTdhYmM3ZDQ2NzkzYjdhOGYxMjA0MjcifQ==
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