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arXiv · 2007.06171

Quenching dynamics of the bright solitons and other localized states in spin-orbit coupled Bose-Einstein condensates

Rajamanickam Ravisankar·Thangarasu Sriraman·Luca Salasnich·Paulsamy Muruganandam
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Abstract

We study the dynamics of binary Bose-Einstein condensates made of ultracold and dilute alkali-metal atoms in a quasi-one-dimensional setting. Numerically solving the two coupled Gross-Pitaevskii equations which accurately describe the system dynamics, we demonstrate that the spin transport can be controlled by suitably quenching spin-orbit (SO) and Rabi coupling strengths. Moreover, we predict a variety of dynamical features induced by quenching: broken oscillations, breathers-like oscillating patterns, spin-mixing-demixing, miscible-immiscible transition, emerging dark-bright states, dark solitons, and spin-trapping dynamics. We also outline the experimental relevance of the present study in manipulating the spin states in $^{39}$K condensates.

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Rajamanickam Ravisankar, Thangarasu Sriraman, Luca Salasnich, Paulsamy Muruganandam. 2020-07-13. Quenching dynamics of the bright solitons and other localized states in spin-orbit coupled Bose-Einstein condensates. https://doi.org/10.1088/1361-6455/aba661

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