Using the holographic mapping to a gravity dual, we calculate 2-point functions, Wilson loops, and entanglement entropy in strongly coupled field theories in d=2, 3, and 4 to probe the scale dependence of thermalization following a sudden injection of energy. For homogeneous initial conditions, the entanglement entropy thermalizes slowest and sets a time scale for equilibration that saturates a causality bound. The growth rate of entanglement entropy density is nearly volume-independent for small volumes but slows for larger volumes. In this setting, the UV thermalizes first.
Original languageEnglish
Article number191601
Number of pages4
JournalPhysical Review Letters
Volume106
Issue number19
Publication statusPublished - 9 May 2011

    Research areas

  • entropy : entanglement, surface : minimal, field theory : anti-de Sitter, saddle-point approximation, AdS/CFT correspondence, scale dependence, strong coupling, Wilson loop, causality, quenching, nonlocal, duality, field theory : conformal, gravitation : duality, heavy ion : scattering, screening : length, invariance : gauge

ID: 2036244