|DATE||May 29 (Mon), 2017|
|TITLE||Entanglement entropy for free scalar fields in AdS|
We consider entanglement entropy (EE) of QFT in AdS space in order to evaluate quantum corrections to the holographic EE of CFT. For a holographic CFT, when the theory is a large N theory, EE can be computed by the area of the minimal surface in the bulk AdS space. However, for finite N theory, we need to consider the quantum corrections in the bulk. It is proposed that the quantum corrections are given by the bulk EE, back reaction and counter terms. We evaluate these corrections for the scalar field in AdS at the 1-loop level and see that the result is consistent with the 1/N expansion of the dual CFT.