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arXiv · 1311.5659

Non-autonomous bright matter wave solitons in spinor Bose-Einstein condensates

T. Kanna·R. Babu Mareeswaran·K. Sakkaravarthi
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Abstract

We investigate the dynamics of bright matter wave solitons in spin-1 Bose-Einstein condensates with time modulated nonlinearities. We obtain soliton solutions of an integrable autonomous three-coupled Gross-Pitaevskii (3-GP) equations using Hirota's method involving a non-standard bilinearization. The similarity transformations are developed to construct the soliton solutions of non-autonomous 3-GP system. The non-autonomous solitons admit different density profiles. An interesting phenomenon of soliton compression is identified for kink-like nonlinearity coefficient with Hermite-Gaussian-like potential strength. Our study shows that these non-autonomous solitons undergo non-trivial collisions involving condensate switching.

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T. Kanna, R. Babu Mareeswaran, K. Sakkaravarthi. 2013-11-22. Non-autonomous bright matter wave solitons in spinor Bose-Einstein condensates. https://doi.org/10.1016/j.physleta.2013.11.002

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