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Quantum chaos and effective thermalization
Alexander Altland, Fritz Haake
We demonstrate effective equilibration for unitary quantum dynamics under conditions of classical chaos. Focusing on the paradigmatic example of the Dicke model, we show how a cons…
Incoherent scatterer in a Luttinger liquid: a new paradigmatic limit
Alexander Altland, Yuval Gefen, Bernd Rosenow
We address the problem of a Luttinger liquid with a scatterer that allows for both coherent and incoherent scattering channels. The asymptotic behavior at zero temperature is gover…
Majorana Fermions in Strongly Interacting Helical Liquids
Eran Sela, Alexander Altland, Achim Rosch
Majorana fermions were proposed to occur at edges and interfaces of gapped one-dimensional systems where phases with different topological character meet due to an interplay of spi…
Quantum phase transitions in the quasi-periodic kicked rotor
Chushun Tian, Alexander Altland, Markus Garst
We present a microscopic theory of transport in quasi-periodically driven environments (`kicked rotors'), as realized in recent atom optic experiments. We find that the behavior of…