3 papers
gr-qc2026
The role of Wigner rotation in estimating the specific angular momentum of a Kerr spacetime
F. J. Lobo, M. Rivera-Tapia, G. Rubilar +1
We study the rotation of the polarization due to the gravitational field in the Kerr spacetime and the possibility of estimating the specific angular momentum that parameterizes th…
gr-qc2026
Discrimination of metric theories
F. J. Lobo, M. Rivera-Tapia, G. Rubilar +2
We study the possibility of discriminating between metric theories within the Parametrized Post-Newtonian formalism. In this approach, the two-dimensional quantum state of a massiv…
quant-ph2024
Estimation of high-dimensional unitary transformations saturating the Quantum Cramér-Rao bound
J. Escandón-Monardes, D. Uzcátegui, M. Rivera-Tapia +2
We propose an estimation procedure for -dimensional unitary transformations. For , the unitary transformations close to the identity are estimated saturating the quantum Cr…