Spielman, I.
, Fritsch, A.
, Kevrekidis, P.
, Mithun, T.
, Koutsokostas, G.
and Frantzeskakis, D.
(2024),
Stationary solitary waves in F = 1 spin-orbit-coupled Bose-Einstein condensates, Physical Review Research, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935934
(Accessed November 20, 2024)
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Stationary solitary waves in F = 1 spin-orbit-coupled Bose-Einstein condensates
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Author(s)
, Amilson Fritsch, Panayotis Kevrekidis, T. Mithun, G. Koutsokostas, D. Frantzeskakis
Abstract
We consider solitonic excitations above the ground state of $F=1$ spin orbit coupled Bose-Einstein condensates (SOBECs). The low energy properties of SOBECs in any of the three branches of the single particle dispersion relation can be described by suitable scalar nonlinear Schrödinger (NLS) equations which we obtain using multiple-scale expansions. This enables us to examine a variety of different configurations, such as dark solitons associated with higher energy branches, as well as dark and bright solitons in the lowest branch. The lower branch can exhibit a ''superstripe'' phase akin to a supersolid, that also supports solitons. In all cases, we provide explicit expressions for the NLS coefficients, and confirm their validity with full numerical simulations of the SOBEC system including a harmonic confining potential.Citation
Physical Review Research
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Created February 27, 2024, Updated April 26, 2024