作者: A. Mostafazadeh , Arno R Bohm
DOI: 10.1088/0305-4470/26/20/030
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摘要: The topology of the non-adiabatic parameter space bundle is discussed for evolution exact cyclic state vectors in Berry's original example split angular momentum eigenstates. It turns out that change occurs at a critical frequency. first Chern number classifies these bundles proportional to momentum. principal over not well defined