21 citations · 52 across the 9 of their papers we have counts for
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Boundary Conditions and Entanglement in Anti-de Sitter Space
Konstantinos Boutivas, Dimitrios Katsinis, Georgios Pastras +2
We study the entanglement entropy of a conformally coupled scalar field at its ground state in -dimensional AdS space in global coordinates. We consider spherical entangling…
Computing - and -functions from entanglement
Konstantinos Boutivas, Dimitrios Katsinis, Georgios Pastras +1
We confirm the direct connection between entanglement entropy and the notion of irreversibility in the renormalization-group flow in the context of a simple theory for which a calc…
Entanglement on a Sphere
Konstantinos Boutivas, Dimitrios Katsinis, Georgios Pastras +2
We study the entanglement entropy of a massive scalar field in the background of the Einstein universe. We determine numerically the structure of the UV-divergent terms. We study a…
Entanglement Entropy of a Scalar Field in Anti-de Sitter Space
Konstantinos Boutivas, Dimitrios Katsinis, Ioannis Papadimitriou +2
We study the entanglement entropy of a free massive scalar field at its ground state in (3+1)-dimensional AdS space in global coordinates. We consider spherical entangling surfaces…
Entanglement Entropy as a Probe Beyond the Horizon
Konstantinos Boutivas, Dimitrios Katsinis, Georgios Pastras +1
The entanglement entropy of a free field in de Sitter space is enhanced by the squeezing of its modes. We show analytically that the expansion induces a term in the entanglement en…
A Numerical Calculation of Entanglement Entropy in de Sitter Space
Konstantinos Boutivas, Dimitrios Katsinis, Georgios Pastras +1
The entanglement entropy of a massless scalar field in de Sitter space depends on multiple scales, such as the radius of the entangling surface, the Hubble constant and the UV cuto…
Entanglement and Expansion
Konstantinos Boutivas, Georgios Pastras, Nikolaos Tetradis
We study the entanglement entropy resulting from tracing out local degrees of freedom of a quantum scalar field in an expanding universe. It is known that when field modes become s…