| Full text | |
| Author(s): |
Adhikari, S. K.
[1]
Total Authors: 1
|
| Affiliation: | [1] Univ Estadual Paulista UNESP, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Physics Letters A; v. 388, FEB 5 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We demonstrate spontaneous spatial order in stripe and super-lattice solitons in a Rashba spin-orbit (SO) coupled spin-1 uniform quasi-two-dimensional (quasi-2D) ferromagnetic Bose-Einstein condensate (BEC). For weak SO coupling, the solitons are of the (-1, 0, +1) or (0, +1, +2) type with intrinsic vorticity, where the numbers in the parentheses denote angular momentum in spin components F-z = +1,0, -1, respectively. For intermediate SO coupling, three types of solitons are found: (a) circularly-asymmetric solitons, (b) circularly-symmetric (-1, 0, +1)- and (c) (0, +1, +2)-type multi-ring solitons maintaining the above-mentioned vortices in respective components. For large SO coupling, quasi-degenerate stripe and super-lattice solitons are found in addition to the circularly-asymmetric solitons. A super-lattice soliton forms a 2D square lattice structure in the total density as in a super-solid; in component densities it may have either (i) a 1D stripe pattern or (ii) a 2D square lattice structure. (C) 2020 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |