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pro vyhledávání: '"Costa, Cleber N."'
Autor:
Ambrósio, Gabriella V., Andrade, Michelly S., Alves, Paulo R. F., Costa, Cleber N., Neto, Jorge Ananias, Thibes, Ronaldo
We examine the potential of Kaniadakis entropy to describe black-hole entropy, proposing a modified version accounting for black hole thermodynamics. We posit a conjecture that the Kaniadakis entropy precisely describes the Bekenstein-Hawking black-h
Externí odkaz:
http://arxiv.org/abs/2405.14799
Autor:
Ambrosio, Gabriella V., Costa, Cleber N., Alves, Paulo R. F., Neto, Jorge Ananias, Thibes, Ronaldo
We analyze the Hamiltonian structure of an extended chiral bosons theory in which the self-dual constraint is introduced via a control $\alpha$-parameter. The system has two second-class constraints in the non-critical regime and an additional one in
Externí odkaz:
http://arxiv.org/abs/2311.13039
Autor:
Costa, Cleber N., Ambrósio, Gabriella V., Alves, Paulo R. F., Neto, Jorge Ananias, Thibes, Ronaldo
We use the gauge unfixing (GU) formalism framework in a two dimensional noncommutative chiral bosons (NCCB) model to disclose new hidden symmetries. That amounts to converting a second-class system to a first-class one without adding any extra degree
Externí odkaz:
http://arxiv.org/abs/2307.00396
Autor:
Ambrosio, Gabriella V., Costa, Cleber N., Alves, Paulo R. F., Abreu, Everton M. C., Neto, Jorge Ananias, Thibes, Ronaldo
In this paper, the Hamiltonian structure of the bosonized chiral Schwinger model (BCSM) is analyzed. From the consistency condition of the constraints obtained from the Dirac method, we can observe that this model presents, for certain values of the
Externí odkaz:
http://arxiv.org/abs/2302.10134
Autor:
Alves, Paulo R. F., Costa, Cleber N., Fiorentini, D., Otoya, V. J. Vasquez, Abreu, Everton M. C., Neto, Jorge Ananias
In this paper, we propose a generalization of an improved gauge unfixing formalism in order to generate gauge symmetries in the non-Abelian valued systems. This generalization displays a proper and formal reformulation of second-class systems within
Externí odkaz:
http://arxiv.org/abs/2205.09161
Autor:
Alves, Paulo R. F., Costa, Cleber N., Abreu, Everton M. C., Neto, Jorge Ananias, Mendes, Albert C. R.
In this paper we have analyzed the improved version of the Gauge Unfixing (GU) formalism of the massive Carroll-Field-Jackiw model, which breaks both the Lorentz and gauge invariances, to disclose hidden symmetries to obtain gauge invariance, the key
Externí odkaz:
http://arxiv.org/abs/2005.03706
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