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Entanglement Tsunami: Universal Scaling in Holographic Thermalization

By Hong Liu and Sunok Josephine Suh


We consider the time evolution of entanglement entropy after a global quench in a strongly coupled holographic system, whose subsequent equilibration is described in the gravity dual by the gravitational collapse of a thin shell of matter resulting in a black hole. In the limit of large regions of entanglement, the evolution of entanglement entropy is controlled by the geometry around and inside the event horizon of the black hole, resulting in regimes of pre-local-equilibration quadratic growth (in time), post-local-equilibration linear growth, a late-time regime in which the evolution does not carry memory of the size and shape of the entangled region, and a saturation regime with critical behavior resembling those in continuous phase transitions. Collectively, these regimes suggest a picture of entanglement growth in which an “entanglement tsunami” carries entanglement inward from the boundary. We also make a conjecture on the maximal rate of entanglement growth in relativistic systems.United States. Dept. of Energy (Cooperative Research Agreement DE-FG0205ER41360)Simons Foundatio

Publisher: American Physical Society
Year: 2013
DOI identifier: 10.1103/PhysRevLett.112.011601
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Provided by: DSpace@MIT
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