30 citations · 191 across the 29 of their papers we have counts for
3 papers · 1 filter
Influence of conformal symmetry on the amplitude ratios for O() models
H. A. S. Costa, P. R. S. Carvalho
In this Letter we compute analytically the effect of conformal symmetry on the radiative corrections to the amplitude ratios for O() massless scalar field theories in c…
Ramsey interferometry as a witness of acceleration radiation
Helder A. S. Costa, Irismar G. da Paz, Paulo R. S. Carvalho +1
We adapt a typical Ramsey interferometer by inserting a linear accelerator capable of accelerating an atom inside a single-mode cavity. We demonstrate that this simple scheme allow…
Alice and Bob in an anisotropic expanding spacetime
Helder A. S. Costa, Paulo R. S. Carvalho
We investigate a quantum teleportation process between two comoving observers Alice and Bob in an anisotropic expanding spacetime. In this model, we calculate the fidelity of telep…