Entanglement entropy from one-point functions in holographic states
Apr 18, 2016
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Abstract: (Springer)
For holographic CFT states near the vacuum, entanglement entropies for spatial subsystems can be expressed perturbatively as an expansion in the one-point functions of local operators dual to light bulk fields. Using the connection between quantum Fisher information for CFT states and canonical energy for the dual spacetimes, we describe a general formula for this expansion up to second-order in the one-point functions, for an arbitrary ball-shaped region, extending the first-order result given by the entanglement first law. For two-dimensional CFTs, we use this to derive a completely explicit formula for the second-order contribution to the entanglement entropy from the stress tensor. We show that this stress tensor formula can be reproduced by a direct CFT calculation for states related to the vacuum by a local conformal transformation. This result can also be reproduced via the perturbative solution to a non-linear scalar wave equation on an auxiliary de Sitter spacetime, extending the first-order result in arXiv:1509.00113 .Note:
- 34 pages, 2 figures; v2 references added, minor typos corrected
- AdS-CFT Correspondence
- Gauge-gravity correspondence
- entropy: entanglement
- transformation: conformal
- space-time: de Sitter
- operator: local
- duality: holography
- nonlinear
- field theory: conformal
- n-point function: 1
References(34)
Figures(2)
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- [6]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [13]
- [14]
- [15]
- [16]
- [17]
- [18]
- [19]
- [20]
- [21]
- [22]
- [23]
- [24]
- [25]