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Holographic entanglement entropy for excited states in two dimensional CFT

Astaneh, A. F ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1007/JHEP03(2013)135
  3. Publisher: 2013
  4. Abstract:
  5. We use holographic methods to study the entanglement entropy for excited states in a two dimensional conformal field theory. The entangling area is a single interval and the excitations are produced by in and out vertex operators with given scaling dimensions. On the gravity side we provide the excitations by turning on a scalar field with an appropriate mass. The calculation amounts to using the gravitational background, with a singular boundary, to find the one point function of the vertex operators. The singular boundary is taken care of by introducing a nontrivial UV regulator surface to calculate gravitational partition functions. By means of holographic methods we reproduce the field theory results for primary excitations
  6. Keywords:
  7. AdS-CFT Correspondence ; Gauge-gravity correspondence ; Holography and condensed matter physics (AdS/CMT)
  8. Source: Journal of High Energy Physics ; Volume 2013, Issue 3 , March , 2013 ; 11266708 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2FJHEP03%282013%29135