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Holographic Derivation of Entanglement Entropy from the anti–de Sitter Space/Conformal Field Theory Correspondence

Shinsei Ryu, Tadashi Takayanagi

Physical Review Letters · 2006 · 4,342 citationsOpen access

doi.org/10.1103/physrevlett.96.181602Free full text

Abstract

A holographic derivation of the entanglement entropy in quantum (conformal) field theories is proposed from anti-de Sitter/conformal field theory (AdS/CFT) correspondence. We argue that the entanglement entropy in d + 1 dimensional conformal field theories can be obtained from the area of d dimensional minimal surfaces in AdS(d+2), analogous to the Bekenstein-Hawking formula for black hole entropy. We show that our proposal agrees perfectly with the entanglement entropy in 2D CFT when applied to AdS(3). We also compare the entropy computed in AdS(5)XS(5) with that of the free N=4 super Yang-Mills theory.

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Ryu, S., & Takayanagi, T. (2006). Holographic derivation of entanglement entropy from the anti–de sitter Space/Conformal field theory correspondence. Physical Review Letters, 96(18), 181602. https://doi.org/10.1103/physrevlett.96.181602

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