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hep-th2025★ 1 cited
Invisible extended Unruh-DeWitt detector
Victor Hugo M. Ramos, João Paulo M. Pitelli, João C. A. Barata
We develop a localized particle detector model formulated as a massive quantum field on Minkowski spacetime with the spatial origin excised. To render the problem well posed at the…
hep-th2025★ 1 cited
Vacuum fluctuations and the renormalized stress-energy tensor on a cone with arbitrary boundary conditions
João Paulo M. Pitelli, Ricardo A. Mosna, Victor Hugo M. Ramos +1
We analyze the vacuum fluctuations and the stress-energy tensor of a scalar field of mass in a conical spacetime, where the topological singularity at the apex requires boundar…