# Holographic entanglement entropy of de Sitter braneworld

@article{Iwashita2006HolographicEE, title={Holographic entanglement entropy of de Sitter braneworld}, author={Yukinori Iwashita and Tsutomu Kobayashi and Tetsuya Shiromizu and Hirotaka Yoshino}, journal={Physical Review D}, year={2006}, volume={74}, pages={064027} }

We study the holographic representation of the entanglement entropy, recently proposed by Ryu and Takayanagi, in a braneworld context. The holographic entanglement entropy of a de Sitter brane embedded in an anti-de Sitter (AdS) spacetime is evaluated using geometric quantities, and it is compared with two kinds of de Sitter entropy: a quarter of the area of the cosmological horizon on the brane and entropy calculated from the Euclidean path integral. We show that the three entropies coincide…

## 32 Citations

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