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Wave function multifractality and dephasing at metal–insulator and quantum Hall transitions

Burmistrov, I. S. ; Bera, S. ; Evers, Ferdinand ; Gornyi, I. V. ; Mirlin, A. D.


We analyze the critical behavior of the dephasing rate induced by short-range electron–electron interaction near an Anderson transition of metal–insulator or quantum Hall type. The corresponding exponent characterizes the scaling of the transition width with temperature. Assuming no spin degeneracy, the critical behavior can be studied by performing the scaling analysis in the vicinity of the ...


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