Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates

Details Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates

2003-10-04

arxiv.org/abs/cond-mat/0310089v2

Phys. Rev. B 69, 214512 (2004)

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevB.69.214512

We show that the non-Abelian Berry phase emerges naturally in the s-wave and
spin quintet pairing channel of spin-3/2 fermions. The topological structure of
this pairing condensate is characterized by the second Chern number. This
topological structure can be realized in ultra-cold atomic systems and in solid
state systems with at least two Kramers doublets.

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