Triviality of Bloch and Bloch–Dirac Bundles
نویسندگان
چکیده
منابع مشابه
Triviality of Bloch and Bloch-Dirac bundles
In the framework of the theory of an electron in a periodic potential, we reconsider the longstanding problem of the existence of smooth and periodic quasi-Bloch functions, which is shown to be equivalent to the triviality of the Bloch bundle. By exploiting the time-reversal symmetry of the Hamiltonian and some bundle-theoretic methods, we show that the problem has a positive answer in any dime...
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ژورنال
عنوان ژورنال: Annales Henri Poincaré
سال: 2007
ISSN: 1424-0637,1424-0661
DOI: 10.1007/s00023-007-0326-8