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- Universidade Federal do CearáBR31 papers
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209 papers
Particle production, absorption, scattering, and geodesics in a Schwarzschild-Hernquist black hole
N. Heidari, A. A. Araújo Filho, P. H. M. Barros
We investigate quantum and classical signatures of a Schwarzschild black hole embedded in a Hernquist dark matter halo. Starting from the exact spherically symmetric solution descr…
Inverse determination of light-matter coupling in disordered systems from transmittance spectra
Thales F. Macedo, Julián Faúndez, Antônio S. Coelho +4
We investigate quantum inverse problems in one-dimensional (1D) electronic disordered systems strongly coupled to optical cavities. More specifically, we consider the Anderson and…
Towards gravimetry enhancement with squeezed states
Oziel R. de Araujo, Lucas S. Marinho, Jonas F. G. Santos +1
We investigate the sensitivity of gravitational acceleration estimation using squeezed probe states in a quantum metrology framework. In particular, we analyze how the squeezing ph…
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…
Can Hawking effect of multipartite state protect quantum resources in Schwarzschild black hole?
Shu-Min Wu, Xiao-Wei Teng, Hui-Chen Yang +3
Most previous studies on relativistic quantum information have primarily focused on the vacuum state and the first excited state in two-mode entangled syste…
Exact infrared scaling behavior of Randers-Finsler scalar field theories
M. S. Mendes, J. F. S. Neto, R. F. Silva +2
We study the scaling behavior of Randers-Finsler massless scalar field theories in the infrared regime. For that, we compute analytically the radiative corrections to the correspon…