7 papers
When Bob orbits Alice: entanglement harvesting in circular motion
F. Sobrero, M. S. Soares, N. F. Svaiter
We study radiative processes of two qubits coupled to a massless scalar field prepared in the Minkowski vacuum state. The analyze the effects of vacuum fluctuations in the generati…
From Feynman-Vernon to Wiener Stochastic Path Integral
Antonio Camurati, Felipe Sobrero, Bruno Suassuna +1
We establish a direct connection between the Feynman-Vernon path integral formalism for open quantum systems and the Wiener path integral used in classical stochastic dynamics. By…
On the quantum nature of strong gravity
Felipe Sobrero, Luca Abrahão, Thiago Guerreiro
Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] have analyzed a gedankenexperiment where two observers, Alice and Bob, attempt to communicate via superluminal signals using a sup…
Scalar-tensor theories in the Lyra geometry: Invariance under local transformations of length units and the Jordan-Einstein frame conundrum
E. C. Valadão, Felipe Sobrero, Santiago Esteban Perez Bergliaffa
The Lyra geometry provides an interesting approach to develop purely geometrical scalar-tensor theories. Here we present a theory on Lyra manifolds which contains generalizations o…
Response of a classical mesoscopic oscillator to a two-level quantum system
Felipe Sobrero, Luca Abrahão, Thiago Guerreiro +1
We investigate the dynamics of a classical mechanical oscillator coupled to the simplest quantum system, a single qubit. Using the Feynman-Vernon influence functional formalism, we…
Hydrodynamic fields in fluctuating environment: a model for isochoric heat capacity of simple liquids
I. P. de Freitas, F. Sobrero, A. M. S. Macedo +1
Using functional methods, we investigate the sound quanta arising from quantized hydrodynamic fields in simple liquids at low temperatures, under the influence of high-energy proce…
Charged spherically symmetric black holes in the Lyra geometry and a preliminary investigation on the overcharging process
Felipe Sobrero, E. C. Valadão
This paper aims to investigate charged spherically symmetric static black holes in the Lyra geometry, in which a scale function naturally arises in the metric and affine structure…