Path topology dependence of adiabatic time evolution

  • Taksu Cheon

    Kochi University of Technology, Japan
  • Atushi Tanaka

    Tokyo Metropolitan University, Japan
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An adiabatic time evolution of a closed quantum system connects eigenspaces of initial and final Hermitian Hamiltonians for slowly driven systems, or, unitary Floquet operators for slowly modulated driven systems. We show that the connection of eigenspaces depends on a topological property of the adiabatic paths for given initial and final points. An example in slowly modulated periodically driven systems is shown. These analysis are based on the topological analysis of the exotic quantum holonomy in adiabatic closed paths.