Friday, February 3, 2012

1202.0094 (Yuki Kawaguchi et al.)

Finite temperature phase diagram of a spin-1 Bose gas    [PDF]

Yuki Kawaguchi, Nguyen Thanh Phuc, P. Blair Blakie
We formulate a self-consistent Hartree-Fock theory for a spin-1 Bose gas at
finite temperature and apply it to characterizing the phase diagram. We find
that spin coherence between thermal atoms in different magnetic sub-levels
develops via coherent collisions with the condensed atoms, and is a crucial
factor in determining the phase diagram. We develop analytical expressions to
characterize the interaction and temperature dependent shifts of the phase
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