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Random Dirac Fermions and Non-Hermitian Quantum Mechanics
Christopher Mudry, B. D. Simons, Alexander Altland
We study the influence of a strong imaginary vector potential on the quantum mechanics of particles confined to a two-dimensional plane and propagating in a random impurity potenti…
Field Theory of Mesoscopic Fluctuations in Superconductor/Normal-Metal Systems
Alexander Altland, B D Simons, D Taras-Semchuk
Thermodynamic and transport properties of normal disordered conductors are strongly influenced by the proximity of a superconductor. A cooperation between mesoscopic coherence and…
Conductance fluctuations in mesoscopic normal-metal/superconductor samples
Klaus Hecker, Helmut Hegger, Alexander Altland +1
We study the magnetoconductance fluctuations of mesoscopic normal-metal/superconductor (NS) samples consisting of a gold-wire in contact with a niobium film. The magnetic field str…
Perturbation Theory for the Rosenzweig-Porter Matrix Model
Alexander Altland, Martin Janssen, Boris Shapiro
We study an ensemble of random matrices (the Rosenzweig-Porter model) which, in contrast to the standard Gaussian ensemble, is not invariant under changes of basis. We show that a…
Reply to the Comment by Casati et al. on "Field theory of the quantum kicked rotor" [Phys. Rev. Lett. 77, 4536 (1996)]
Alexander Altland, Martin R. Zirnbauer
In a recent comment [cond-mat/9703106] Casati, Izrailev and Sokolov claim that our analysis of the quantum kicked rotor [Phys. Rev. Lett. 77, 4536 (1996), chao-dyn/9609014] seems t…