Phase separation in a spin-orbit-coupled Bose-Einstein condensate

Autor(es)

Gautam, Sandeep ^[1] ; Adhikari, S. K. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Review A; v. 90, n. 4 OCT 20 2014.
• Citações Web of Science: 18

Resumo

We study a spin-orbit (SO)-coupled hyperfine spin-1 Bose-Einstein condensate (BEC) in a quasi-one-dimensional trap. For an SO-coupled BEC in a one-dimensional box, we show that in the absence of the Rabi term, any nonzero value of SO coupling will result in a phase separation among the components for a ferromagnetic BEC, like Rb-87. On the other hand, SO coupling favors miscibility in a polar BEC, like Na-23. In the presence of a harmonic trap, which favors miscibility, a ferromagnetic BEC phase separates, provided that the SO-coupling strength and number of atoms are greater than some critical value. The Rabi term favors miscibility irrespective of the nature of the spin interaction: ferromagnetic or polar. (AU)

• Processo FAPESP: 13/07213-0 - Propriedades estáticas e dinâmicas de condensados com spin
• Beneficiário: Sandeep Gautam
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado