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math-ph2024
Modular Hamiltonian and modular flow of massless fermions on a cylinder
Daniela Cadamuro, Markus B. Fröb, Guillem Pérez-Nadal
We determine explicitly the modular flow and the modular Hamiltonian for massless free fermions in diamonds on a cylinder in 1+1 dimensions. We consider both periodic and antiperio…
math-ph2024★ 2 cited
The Sine-Gordon QFT in de Sitter spacetime
Daniela Cadamuro, Markus B. Fröb, Carolina Moreira Ferrera
We consider the massless Sine-Gordon model in de Sitter spacetime, in the regime and using the framework of perturbative algebraic quantum field theory. We show that a…