30 citations · 104 across the 11 of their papers we have counts for
11 papers
Multipartite Entanglement from Consecutive Scatterings
Gonçalo M. Quinta, Rui André
We study how the successive scattering of spin 1/2 particles with a central spin 1/2 target particle can generate entanglement between the helicity degrees of freedom of all scatte…
Quantum Simulation of Bound State Scattering
Matteo Turco, Gonçalo M. Quinta, João Seixas +1
The last few years have seen rapid development of applications of quantum computation to quantum field theory. The first algorithms for quantum simulation of scattering have been p…
Qubit Picture of Virtual Particles
Gonçalo M. Quinta
We show that virtual particles, despite being unobservable, can be described by quantum operators which can be interpreted under certain conditions as valid qubit quantum states. F…
Entanglement Classification via Single Entanglement Measure
Adam Burchardt, Gonçalo M. Quinta, Rui André
We show that a single polynomial entanglement measure is enough to verify equivalence between generic -qubit states under Stochastic Local Operations with Classical Communicatio…
Spontaneously broken symmetry restoration of quantum fields in the vicinity of neutral and electrically charged black holes
Gonçalo M. Quinta, Antonino Flachi, José P. S. Lemos
We consider the restoration of a spontaneously broken symmetry of an interacting quantum scalar field around neutral, i.e., Schwarzschild, and electrically charged, i.e., Reissner-…
Quantum vacuum polarization around a Reissner-Nordström black hole in five dimensions
Gonçalo M. Quinta, Antonino Flachi, José P. S. Lemos
WKB approximation methods are applied to the case of a massive scalar field around a 5-dimensional Reissner-Nordström black hole. The divergences are explicitly isolated and the ca…
Black Hole Quantum Vacuum Polarization in Higher Dimensions
Antonino Flachi, Gonçalo M. Quinta, José P. S. Lemos
The goal of this paper is to extend to higher dimensionality the methods and computations of vacuum polarization effects in black hole spacetimes. We focus our attention on the cas…
Entropy of an extremal electrically charged thin shell and the extremal black hole
José P. S. Lemos, Gonçalo M. Quinta, Oleg B. Zaslavskii
There is a debate as to what is the value of the the entropy of extremal black holes. There are approaches that yield zero entropy , while there are others that yield the…
Compact stars with a small electric charge: the limiting radius to mass relation and the maximum mass for incompressible matter
José P. S. Lemos, Francisco J. Lopes, Gonçalo Quinta +1
One of the stiffest equations of state for matter in a compact star is constant energy density and this generates the interior Schwarzschild radius to mass relation and the Misner…
Entropy of thin shells in a (2+1)-dimensional asymptotically AdS spacetime and the BTZ black hole limit
José P. S. Lemos, Gonçalo M. Quinta
The thermodynamic equilibrium states of a static thin ring shell in a (2+1)-dimensional spacetime with a negative cosmological constant are analyzed. Inside the ring, the spacetime…
Thermodynamics, entropy, and stability of thin shells in 2+1 flat spacetimes
José P. S. Lemos, Gonçalo M. Quinta
The thermodynamic equilibrium states of a static thin ring shell in a (2+1)-dimensional flat spacetime is analyzed. Inside the ring the spacetime is flat, whereas outside it is con…