50 citations · 322 across the 35 of their papers we have counts for
27 papers · 1 filter
Vacuum polarization in the Schwarzschild black hole with a global monopole
Leonardo G. Barbosa, Victor H. M. Ramos, João Paulo M. Pitelli
We investigate vacuum polarization on the event horizon of a Schwarzschild black hole carrying a global monopole. For a massless scalar field in the Hartle-Hawking state and wi…
Unruh-deWitt detector in impulsive plane wave spacetimes
João Paulo M. Pitelli, Ricardo A. Mosna
We investigate the response function of an inertial Unruh-deWitt detector in an impulsive plane wave spacetime. Through symmetry considerations applied to the Wightman function, we…
Robin boundary conditions in acoustic BTZ black holes
Christyan C. de Oliveira, Ricardo A. Mosna, João Paulo M. Pitelli
We introduce an analog model for the conformally coupled scalar field on the BTZ black hole. The model is based on the propagation of acoustic waves in a Laval nozzle. Since the BT…
Comment on "Analog Schwarzschild-like geometry in fluids with external pressure''
João Paulo M. Pitelli, Ricardo A. Mosna, Christyan C. de Oliveira +1
In Ref. [1], exact (not only conformally related) analogue models for the Schwarzschild and Reissner-Nordström spacetimes were found. The background non-relativistic fluid flow was…
Boundary conditions for isolated asymptotically anti-de Sitter spacetimes
Christyan C. de Oliveira, Ricardo A. Mosna, João Paulo M. Pitelli
We revisit the propagation of classical scalar fields in a spacetime which is asymptotically anti-de Sitter. The lack of global hyperbolicity of the underlying background gives ris…
Unruh-DeWitt detector in
João Paulo M. Pitelli, Bruno S. Felipe, Ricardo A. Mosna
We find the response function and the transition rate for an Unruh-DeWitt detector interacting with a conformal scalar field in global two-dimensional anti--de Sitter (AdS) spaceti…