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hep-th2024
Entanglement of a chiral scalar on the torus
Nicolás Abate, David Blanco, Alan Garbarz +2
We compute the entanglement entropy of an interval for a chiral scalar on a circle at an arbitrary temperature. We use the resolvent method, which involves expressing the entropy i…
hep-th2024★ 1 cited
Irreversibility of quantum field theory in de Sitter: the C, F and A theorems
Nicolás Abate, Gonzalo Torroba
We prove the C, F and A irreversibility theorems in de Sitter spacetime for quantum field theories that are obtained as renormalization group flows from ultraviolet conformal fixed…
hep-th2024★ 3 cited
Quantum information and the C-theorem in de Sitter
Nicolás Abate, Gonzalo Torroba
Information-theoretic methods have led to significant advances in nonperturbative quantum field theory in flat space. In this work, we show that these ideas can be generalized to f…