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Topological phase effect on a superconductivity model: Generalized Jahn-teller problems and fractional charge

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
128
Issue
5
Identifiers
DOI: 10.1016/0375-9601(88)90376-3
Disciplines
  • Mathematics
  • Physics

Abstract

Abstract Using a toy model of the pairing hamiltonian, we show that the topological (Berry) phase leads to the fractional quantization of the pairing mode in superconductivity, which implies a fractional charge of the Cooper pair.

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