TY - JOUR
T1 - Numerical study of the stability of skyrmions in Bose-Einstein condensates
AU - Wüster, S.
AU - Argue, T. E.
AU - Savage, C. M.
PY - 2005/10
Y1 - 2005/10
N2 - We show that the stability of three-dimensional skyrmions in trapped Bose-Einstein condensates depends critically on scattering lengths, atom numbers, trap rotation, and trap anisotropy. In particular, for the Rb87F=1,mf=-1, F=2,mf=1 hyperfine states stability is sensitive to the scattering lengths at the 2% level, where the differences between them are crucial. In a cigar shaped trap, we find stable skyrmions with slightly more than 2×106 atoms, a number which scales with the inverse square root of the trap frequency. These can be stabilized against drift out of the trap by laser pinning.
AB - We show that the stability of three-dimensional skyrmions in trapped Bose-Einstein condensates depends critically on scattering lengths, atom numbers, trap rotation, and trap anisotropy. In particular, for the Rb87F=1,mf=-1, F=2,mf=1 hyperfine states stability is sensitive to the scattering lengths at the 2% level, where the differences between them are crucial. In a cigar shaped trap, we find stable skyrmions with slightly more than 2×106 atoms, a number which scales with the inverse square root of the trap frequency. These can be stabilized against drift out of the trap by laser pinning.
UR - http://www.scopus.com/inward/record.url?scp=28844500746&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.72.043616
DO - 10.1103/PhysRevA.72.043616
M3 - Article
SN - 1050-2947
VL - 72
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043616
ER -