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Topological quantum criticality of the disordered Chern insulator
Mateo Moreno-Gonzalez, Johannes Dieplinger, Alexander Altland
We consider the two-dimensional topological Chern insulator in the presence of static disorder. Generic quantum states in this system are Anderson localized. However, topology requ…
Statistical Majorana Bound State Spectroscopy
Alexander Ziesen, Alexander Altland, Reinhold Egger +1
Tunnel spectroscopy data for the detection of Majorana bound states (MBS) is often criticized for its proneness to misinterpretation of genuine MBS with low-lying Andreev bound sta…
Emergence of Fermi's Golden Rule
Tobias Micklitz, Alan Morningstar, Alexander Altland +1
Fermi's Golden Rule (FGR) applies in the limit where an initial quantum state is weakly coupled to a {\it continuum} of other final states overlapping its energy. Here we investiga…
Quantum chaos in 2D gravity
Alexander Altland, Boris Post, Julian Sonner +2
We present a quantitative and fully non-perturbative description of the ergodic phase of quantum chaos in the setting of two-dimensional gravity. To this end we describe the doubly…
Maximum entropy quantum state distributions
Alexander Altland, David A. Huse, Tobias Micklitz
We propose an approach to the realization of many-body quantum state distributions inspired by combined principles of thermodynamics and mesoscopic physics. Its essence is a maximu…
Floquet simulators for topological surface states in isolation
Kun Woo Kim, Dmitry Bagrets, Tobias Micklitz +1
We propose dynamical protocols allowing for the engineered realization of topological surface states in isolation. Our approach builds on the concept of synthetic dimensions genera…