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One-particle density matrix characterization of many-body localization
Soumya Bera, Thomas Martynec, Henning Schomerus +2
We study a model of interacting fermions in one dimension subject to random, uncorrelated onsite disorder. The model realizes an interaction-driven quantum phase transition between…
Bulk-boundary correspondence from the inter-cellular Zak phase
Jun-Won Rhim, Jan Behrends, Jens H. Bardarson
The Zak phase , the generalization of the Berry phase to Bloch wave functions in solids, is often used to characterize inversion-symmetric 1D topological insulators; however, si…
Quantum Mutual Information as a Probe for Many-Body Localization
Giuseppe De Tomasi, Soumya Bera, Jens H. Bardarson +1
We demonstrate that the quantum mutual information (QMI) is a useful probe to study many-body localization (MBL). First, we focus on the detection of a metal--insulator transition…
Conductance fluctuations and disorder induced quantum Hall plateau in topological insulator nanowires
Emmanouil Xypakis, Jens H. Bardarson
Clean topological insulators exposed to a magnetic field develop Landau levels accompanied by a nonzero Hall conductivity for the infinite slab geometry. In this work we consider t…
Theory of a 3+1D fractional chiral metal: interacting variant of the Weyl semimetal
Tobias Meng, Adolfo G. Grushin, Kirill Shtengel +1
Formulating consistent theories describing strongly correlated metallic topological phases is an outstanding problem in condensed matter physics. In this work we derive a theory de…