Domain-wall solutions of spinor Bose-Einstein condensates in an optical lattice

Journal Article · Fri Jan 15 04:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.015602· OSTI ID:21388845

Zaidong, Li; Qiuyan, Li ^[1]; Pengbin, He ^[2]; Liang, J -Q ^[3]; Liu, W M ^[4]; Guangsheng, Fu ^[5]

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1. Department of Applied Physics, Hebei University of Technology, Tianjin 300401 (China)
2. College of Physics and Microelectronics Science, Hunan University, Changsha 410082 (China)
3. Institute of Theoretical Physics and Department of Physics, Shanxi University, Taiyuan 030006 (China)
4. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)
5. School of Information Engineering, Hebei University of Technology, Tianjin, 300401 (China)

We studied the static and dynamic domain-wall solutions of spinor Bose-Einstein condensates trapped in an optical lattice. The single and double domain-wall solutions are constructed analytically. Our results show that the magnetic field and light-induced dipolar interactions play important roles for both the formation of different domain walls and the adjusting of domain-wall width and velocity. Moreover, these interactions can drive the motion of the domain wall in Bose ferromagnet systems similar to the way the external magnetic field or the spin-polarized current drives it in fermion ferromagnets.

• OSTI ID: 21388845
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
CURRENTS
DIMENSIONS
ELECTROMAGNETIC RADIATION
FERMIONS
INTERACTIONS
MAGNETIC FIELDS
MATHEMATICAL SOLUTIONS
ORIENTATION
RADIATIONS
SPIN ORIENTATION
TRAPPING
VELOCITY
VISIBLE RADIATION
WIDTH