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Title: | Supersolid-like solitons in two-dimensional nonmagnetic spin-orbit coupled spin-1 and spin-2 condensates |
Authors: | Kaur, P. Gautam, S. Adhikari, S.K. |
Keywords: | Spin-orbit coupling Supersolid Soliton Periodic square and triangular lattice Spinor condensate |
Issue Date: | 15-Dec-2022 |
Abstract: | We demonstrate spontaneous generation of spatially-periodic supersolid-like super-lattice and stripesolitons in Rashba spin-orbit (SO) coupled spin-1 and spin-2 quasi-two-dimensional nonmagnetic BoseEinstein condensates (BECs). The solitons in a weakly SO-coupled spin-1 BEC are circularly-symmetric of (−1, 0,+1) and (0,+1,+2) types and have inherent vorticity; the numbers in the parentheses are the winding numbers in hyper-spin components +1, 0,−1, respectively. The circularly-symmetric solitons in an SO-coupled spin-2 BEC are of types (−2,−1, 0,+1,+2) and (−1, 0,+1,+2,+3) with the former being the ground state, where the winding numbers correspond to spin components +2,+1, 0,−1,−2, respectively. For stronger SO-coupling strengths, these solitons acquire a multiring structure while preserving the winding numbers. Quasi-degenerate stripe and super-lattice solitons, besides a circularlyasymmetric soliton, also emerge as excited stationary states for stronger SO-coupling strengths in spin-1 and spin-2 BECs. |
URI: | http://localhost:8080/xmlui/handle/123456789/4314 |
Appears in Collections: | Year-2022 |
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