8 citations · 14 across the 4 of their papers we have counts for
5 papers
Explicit Analytical Representations for the Schwarzschild Radial Equation via Hypergeometric and Frobenius Expansions
J. G. R. Valangelis, Ailton C. Nascimento, Helder A. S. Costa
The massive Klein-Gordon equation on the Schwarzschild exterior reduces to a radial differential equation of confluent-Heun type. We present its exact reduction by rigorously retai…
Velocity effects slightly mitigating the quantumness degradation of an Unruh-DeWitt detector
P. H. M. Barros, Shu-Min Wu, C. A. S. Almeida +1
In this work, we investigate the velocity effects on information degradation due to the Unruh effect in accelerated quantum systems (with finite interaction time). We consider a de…
Mitigating the information degradation in a massive Unruh-DeWitt theory
P. H. M. Barros, F. C. E. Lima, C. A. S. Almeida +1
We investigated the influence of the massive scalar field on the information degradation concerning the Unruh-DeWitt (UDW) detectors. In this conjecture, we adopted a system with a…
Dispersive vacuum as a decoherence amplifier of an Unruh-DeWitt detector
Pedro H. M. Barros, Helder A. S. Costa
Recently, interest has been growing in studies on discrete or "pixelated" space-time that, through modifications in the dispersion relation, can treat the vacuum as a dispersive me…
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…