Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2006-11-14
Phys. Rev. Lett. 98, 030403 (2007)
Physics
Condensed Matter
Other Condensed Matter
4 pages, 1 figures
Scientific paper
10.1103/PhysRevLett.98.030403
For an atomic condensate in an axially symmetric magnetic trap, the sum of the axial components of the orbital angular momentum and the hyperfine spin is conserved. Inside an Ioffe-Pritchard trap (IPT) whose magnetic field (B-field) is not axially symmetric, the difference of the two becomes surprisingly conserved. In this paper we investigate the relationship between the values of the sum/difference angular momentums for an atomic condensate inside a magnetic trap and the associated gauge potential induced by the adiabatic approximation. Our result provides significant new insight into the vorticity of magnetically trapped atomic quantum gases.
Jen Hsiang-Hua
Sun Chang-Pu
You Liangzhi
Zhang Pei-Pei
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