Berlin 2012 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 1: Correlated Electrons: Low-dimensional Systems - Models 1
TT 1.8: Vortrag
Montag, 26. März 2012, 11:30–11:45, H 0104
Entanglement spectrum in two dimensional systems — •Vincenzo Alba1, Masud Haque1, and Andreas Lauchli2 — 1Max Planck Institute for the Physics of the Complex Systems, Dresden, Germany — 2University of Innsbruck, Innsbruck, Austria
We studied the entanglement spectrum of several two dimensional systems (2D Bose-Hubbard, XXZ, tight binding systems with staggered chemical potential). We found a physical description of the low part of the entanglement spectrum in terms of effective hamiltonians (entanglement hamiltonians). For the 2D Bose Hubbard we also characterized the behavior of the entanglement spectrum in the superfluid phase where we found that the entanglement hamiltonian shows clear signatures of the condensate wavefunction.