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arXiv · 2201.08728

Fine structure of the stripe phase in ring-shaped Bose-Einstein condensates with spin-orbital-angular-momentum coupling

Y. M. Bidasyuk·K. S. Kovtunenko·O. O. Prikhodko
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Abstract

We report on a theoretical study of a ring-shaped Bose-Einstein condensate with Raman-induced spin-orbital-angular-momentum coupling. We analyze the structure of the ground-state of the system depending different physical parameters and reveal a peculiar fine structure within the stripe phase on the phase diagram. We demonstrate the existence of the predicted stripe sub-phases within a wide range of physical parameters, their traceability through physical observables, and compare the results with several commonly used variational approximations. We also show that predicted sub-phases of the stripe phase can be observed within experimentally realizable conditions.

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Y. M. Bidasyuk, K. S. Kovtunenko, O. O. Prikhodko. 2022-01-21. Fine structure of the stripe phase in ring-shaped Bose-Einstein condensates with spin-orbital-angular-momentum coupling. https://doi.org/10.1103/physreva.105.023320

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