4.4 Article

Entanglement between two interacting CFTs and generalized holographic entanglement entropy

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 4, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP04(2014)185

Keywords

AdS-CFT Correspondence; Field Theories in Lower Dimensions

Funding

  1. JSPS [25287058, 24654057]
  2. Iran Ministry of Science, Research, and Technology
  3. World Premier International Research Center Initiative (WPI Initiative) from the Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)
  4. Grants-in-Aid for Scientific Research [25287058, 24654057] Funding Source: KAKEN

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In this paper we discuss behaviors of entanglement entropy between two interacting CFTs and its holographic interpretation using the AdS/CFT correspondence. We explicitly perform analytical calculations of entanglement entropy between two free scalar field theories which are interacting with each other in both static and time-dependent ways. We also conjecture a holographic calculation of entanglement entropy between two interacting N = 4 super Yang-Mills theories by introducing a minimal surface in the S-5 direction, instead of the AdS(5) direction. This offers a possible generalization of holographic entanglement entropy.

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