Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Geova Alencar"'
Autor:
Valdir Barbosa Bezerra, Herondy Francisco Santana Mota, Augusto P. C. M. Lima, Geová Alencar, Celio Rodrigues Muniz
Publikováno v:
Physics, Vol 6, Iss 3, Pp 1046-1071 (2024)
In this paper, we review some recent findings related to the Casimir effect. Initially, the thermal corrections to the vacuum Casimir energy density are calculated, for a quantum scalar field, whose modes propagate in the (3+1)-dimensional Euclidean
Externí odkaz:
https://doaj.org/article/c22ae85d8ef843769bc133be1d7c861b
Publikováno v:
Universe, Vol 10, Iss 7, p 281 (2024)
In this work, we utilize the dynamic invariant method to obtain a solution for the time-dependent Schrödinger equation, aiming to explore the quantum theory of a p-form gauge field propagating in D-dimensional de Sitter spacetimes. Thus, we present
Externí odkaz:
https://doaj.org/article/9dbb4eb004454cbb9f309bd6f1303c5d
Autor:
Pedro Henrique Ferreira de Oliveira, Geová Alencar, Ivan Carneiro Jardim, Ricardo Renan Landim
Publikováno v:
Symmetry, Vol 15, Iss 2, p 383 (2023)
Wormholes require negative energy, and therefore an exotic matter source. Since Casimir’s energy is negative, it has been speculated as a good candidate to source those objects a long time ago. However, only very recently a full solution for 3+1 di
Externí odkaz:
https://doaj.org/article/645924380f62414fb4737abe2903bf46
Autor:
Job Furtado, Geová Alencar
Publikováno v:
Universe, Vol 8, Iss 12, p 625 (2022)
In this paper, we study the charged and uncharged BTZ counterpart of the black-bounce proposed by Simpson and Visser recently. For the uncharged case, we find that the temperature is not modified by the bounce parameter. We also find that the wormhol
Externí odkaz:
https://doaj.org/article/3d39e70c705d421cb71c2d9857fe6fe7
Autor:
Geová Alencar, Matheus Nilton
Publikováno v:
Universe, Vol 7, Iss 9, p 332 (2021)
In this paper, we analyze the Schwarzschild-like wormhole in the Asymptotically Safe Gravity(ASG) scenario. The ASG corrections are implemented via renormalization group methods, which, as consequence, provides a new tensor Xμν as a source to impro
Externí odkaz:
https://doaj.org/article/63fb72b887d6406299377cffc0492766
