Non-perturbative Solution of the Unitary, N-Orbital Anderson Model
classification
❄️ cond-mat.dis-nn
cond-mat.mes-hall
keywords
modelnon-perturbativeorbitalsingleanalysisandersonaroundbeyond
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The mobility edge is extracted from a non-perturbative analysis of F. Wegner's real matrix ensemble (RME), $N$-orbital model of electrons with broken time-reversal invariance moving in random potential. The replicon fluctuations around the zero-dimensional (0D), single metallic grain saddlepoint, are shown to destabilize diffusive regime beyond the low energy limit yielding a precise criteria of localization in terms of a single scaling parameter.
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