| Autor: |
Mueller N; Maryland Center for Fundamental Physics and Department of Physics, University of Maryland, College Park, Maryland 20742, USA.; Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA., Zache TV; Center for Quantum Physics, University of Innsbruck, 6020 Innsbruck, Austria.; Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria., Ott R; Heidelberg University, Institut für Theoretische Physik, Philosophenweg 16, 69120 Heidelberg, Germany. |
| Abstrakt: |
Using dual theories embedded into a larger unphysical Hilbert space along entanglement cuts, we study the entanglement structure of Z_{2} lattice gauge theory in (2+1) spacetime dimensions. We demonstrate Li and Haldane's conjecture, and show consistency of the entanglement Hamiltonian with the Bisognano-Wichmann theorem. Studying nonequilibrium dynamics after a quench, we provide an extensive description of thermalization in Z_{2} gauge theory which proceeds in a characteristic sequence: Maximization of the Schmidt rank and spreading of level repulsion at early times, self-similar evolution with scaling coefficients α=0.8±0.2 and β=0.0±0.1 at intermediate times, and finally thermal saturation of the von Neumann entropy. |
