237 citations · 544 across the 6 of their papers we have counts for
6 papers
Many-body localization in infinite chains
T. Enss, F. Andraschko, J. Sirker
We investigate the phase transition between an ergodic and a many-body localized phase in infinite anisotropic spin- Heisenberg chains with binary disorder. Starting from the…
Entanglement entropy of disordered quantum chains following a global quench
Y. Zhao, F. Andraschko, J. Sirker
We numerically investigate the growth of the entanglement entropy S_{ent}(t) in time t---after a global quench from a product state---in quantum chains with various kinds of disord…
Propagation of a single hole defect in the one-dimensional Bose-Hubbard model
F. Andraschko, J. Sirker
We study nonequilibrium dynamics in the one-dimensional Bose-Hubbard model starting from an initial product state with one boson per site and a single hole defect. We find that for…
Purification and many-body localization in cold atomic gases
F. Andraschko, T. Enss, J. Sirker
We propose to observe many-body localization in cold atomic gases by realizing a Bose-Hubbard chain with binary disorder and studying its non-equilibrium dynamics. In particular, w…
Dynamical quantum phase transitions and the Loschmidt echo: A transfer matrix approach
F. Andraschko, J. Sirker
A boundary transfer matrix formulation allows to calculate the Loschmidt echo for one-dimensional quantum systems in the thermodynamic limit. We show that non-analyticities in the…
Locality and thermalization in closed quantum systems
J. Sirker, N. P. Konstantinidis, F. Andraschko +1
We derive a necessary and sufficient condition for the thermalization of a local observable in a closed quantum system which offers an alternative explanation, independent of the e…