Non-Abelian Berry phase and Chern numbers in higher spin-pairing condensates

Chyh-Hong Chern, Han-Dong Chen, Congjun Wu, Jiang-Ping Hu, and Shou-Cheng Zhang
Phys. Rev. B 69, 214512 – Published 18 June 2004

Abstract

We show that the non-Abelian Berry phase emerges naturally in the s-wave and spin quintet pairing channel of spin-32 fermions. The topological structure of this pairing condensate is characterized by the second Chern number. This topological structure can be realized in ultracold atomic systems and in solid state systems with at least two Kramers doublets.

  • Received 4 October 2003

DOI:https://doi.org/10.1103/PhysRevB.69.214512

©2004 American Physical Society

Authors & Affiliations

Chyh-Hong Chern1, Han-Dong Chen2, Congjun Wu1, Jiang-Ping Hu3, and Shou-Cheng Zhang1

  • 1Department of Physics, McCullough Building, Stanford University, Stanford, California 94305-4045, USA
  • 2Department of Applied Physics, McCullough Building, Stanford University, Stanford, California 94305-4045, USA
  • 3Department of Physics and Astronomy, University of California, Los Angeles, California 90095-1547, USA

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Issue

Vol. 69, Iss. 21 — 1 June 2004

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