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- Universidade Federal do Rio Grande do SulBR128 papers
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9 papers · 1 filter
Quantum fluctuation theorem in a curved spacetime
Marcos L. W. Basso, Jonas Maziero, Lucas Chibebe Céleri
The interplay between thermodynamics, general relativity and quantum mechanics has long intrigued researchers. Recently, important advances have been obtained in thermodynamics, ma…
Causality and the Arrow of Time in the Branch-Cut Cosmology
Benno Bodmann, César A. Zen Vasconcellos, José de Freitas Pacheco +2
We basis our initial analysis of the arrow of time on a relationship between the time evolution operator of quantum system and the time-independent density operator which describes…
Branch-Cut Cosmology and the Bekenstein Criterion
José A. de Freitas Pacheco, César A. Zen Vasconcellos, Peter O. Hess +2
In this contribution we address the implications of the Bekenstein Criterion in the branch-cut cosmology. The impossibility of packaging energy and entropy according to the Bekenst…
Is time the real line?
B. F. Rizzuti, L. M. Gaio, Lucas T. Cardoso
This paper is devoted to discussing the topological structure of the arrow of time. In the literature, it is often accepted that its algebraic and topological structures are that o…
Pushing the limits of time beyond the Big Bang singularity: Scenarios for the branch cut universe
C. A. Z. Vasconcellos, P. O. Hess, D. Hadjimichef +3
In this contribution we identify two scenarios for the evolutionary branch cut universe. In the first scenario, the universe evolves continuously from the negative complex cosmolog…
The Effect of Stationary Axisymmetric Spacetimes in Interferometric Visibility
Marcos L. W. Basso, Jonas Maziero
In this manuscript, we consider a scenario in which a spin-1/2 quanton goes through a superposition of co-rotating and counter-rotating geodetic circular paths, which play the role…