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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.
Balasubramanian, V., Bernamonti, A., de Boer, J., Copland, N., Craps, B., Keski-Vakkuri, E., Müller, B. O., Schäfer, A., Shigemori, M., & Staessens, W. (2011). Thermalization of Strongly Coupled Field Theories. Retrieved from https://repository.upenn.edu/physics_papers/152
Date Posted: 18 May 2011
This document has been peer reviewed.