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Superbosonization in disorder and chaos: The role of anomalies
Tigran A. Sedrakyan, Konstantin B. Efetov
Superbosonization formula aims at rigorously calculating fermionic integrals via employing supersymmetry. We derive such a supermatrix representation of superfield integrals and sp…
Spin and orbital effects in a 2D electron gas in a random magnetic field
K. B. Efetov, V. R. Kogan
Using the method of superbosonization we consider a model of a random magnetic field (RMF) acting on both orbital motion and spin of electrons in two dimensions. The method is base…
Non-linear -model for long range disorder and quantum chaos
V. R. Kogan, K. B. Efetov
We suggest a new scheme of derivation of a non-linear ballistic -model for a long range disorder and quantum billiards. The derivation is based on writing equations for quasicla…
Transition from insulating to a non-insulating temperature dependence of the conductivity in granular metals
K. B. Efetov, A. Tschersich
We consider interaction effects in a granular normal metal at not very low temperatures. Assuming that all weak localization effects are suppressed by the temperature we replace th…
Quantum Disordered Systems with a Direction
K. B. Efetov
Models of disorder with a direction (constant imaginary vector-potential) are considered. These non-Hermitian models can appear as a result of computation for models of statistical…