LOCAL SPIN-GAUGE SYMMETRY OF THE BOSE-EINSTEIN CONDENSATES IN ATOMIC GASES

Authors
HO TL SHENOY VB
Citation
Tl. Ho et Vb. Shenoy, LOCAL SPIN-GAUGE SYMMETRY OF THE BOSE-EINSTEIN CONDENSATES IN ATOMIC GASES, Physical review letters, 77(13), 1996, pp. 2595-2599
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
13
Year of publication
1996
Pages
2595 - 2599
Database
ISI
SICI code
0031-9007(1996)77:13<2595:LSSOTB>2.0.ZU;2-R
Abstract
The Bose-Einstein condensates of alkali atomic gases are spinor fields with local ''spin-gauge'' symmetry. This symmetry is manifested by a superfluid velocity u(s), (or gauge field) generated by the Berry phas e of the spin field. In ''static'' traps, u(s) splits the degeneracy o f the harmonic energy levels, breaks the inversion symmetry of the vor tex nucleation frequency Omega(cl), and can lead to vortex ground stat es.