Higher-dimensional generalizations of the Berry curvature

18 Feb 2020 Kapustin Anton Spodyneiko Lev

A family of finite-dimensional quantum systems with a non-degenerate ground state gives rise to a closed 2-form on the parameter space: the curvature of the Berry connection. Its cohomology class is a topological invariant of the family... (read more)

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  • STRONGLY CORRELATED ELECTRONS
  • HIGH ENERGY PHYSICS - THEORY
  • MATHEMATICAL PHYSICS
  • MATHEMATICAL PHYSICS