Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates
Superconductivity
2009-11-10 v2 Mesoscale and Nanoscale Physics
Abstract
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.
Keywords
Cite
@article{arxiv.cond-mat/0310089,
title = {Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates},
author = {Chyh-Hong Chern and Han-Dong Chen and Congjun Wu and Jiang-Ping Hu and Shou-Cheng Zhang},
journal= {arXiv preprint arXiv:cond-mat/0310089},
year = {2009}
}