Abelian Chern-Simons Term in Superfluid 3He-A

Details Abelian Chern-Simons Term in Superfluid 3He-A Abelian Chern-Simons Term in Superfluid 3He-A

1997-12-26

arxiv.org/abs/cond-mat/9712294v2

Phys.Lett.A246:549-559,1998

Physics

Condensed Matter

Superconductivity

16 pages, 2 figures, LaTeX, minor points are changed, references are added. Accepted for publication in Physics Letters A

Scientific paper

10.1016/S0375-9601(98)00438-1

We show in this paper that Abelian Chern-Simons term is induced in 2+1 and 3+1 dimensional rotating superfluid $^{3}$He-A and plays important roles in its dynamics. Because U(1) symmetry is spontaneously broken in $^{3}$He-A, Goldstone mode appears and contributes to induced Chern-Simons term. We found that the coefficient of Chern-Simons term, which is equivalent to Hall conductance, depends on an infra-red cut off of the Goldstone mode, and that the orbital angular momentum of $^{3}$He-A in a cylinder geometry is derived from Chern-Simons term.

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