Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Everton M. C. Abreu"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 2, Pp 1-22 (2021)
Abstract The Alcubierre warp drive metric is a spacetime geometry featuring a spacetime distortion, called a warp bubble, where a massive particle inside it acquires global superluminal velocities, or warp speeds. This work presents solutions of the
Externí odkaz:
https://doaj.org/article/020eb689f691409c86bba8c8d32b729d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-8 (2020)
Abstract The Alcubierre metric is a spacetime geometry where a massive particle inside a spacetime distortion, called warp bubble, is able to travel at velocities arbitrarily higher than the velocity of light, a feature known as the warp drive. This
Externí odkaz:
https://doaj.org/article/1e0af879af334367a83ce1614ee0d229
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-7 (2020)
Abstract Through the last years, it was demonstrated that quantum corrections of entropy, represented by logarithmic and power law corrections terms, constituted an association between semi-classical entropic areas and the curvature correction in Ein
Externí odkaz:
https://doaj.org/article/f7e60407252e4e64a332864e7df32d46
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 3, Pp 1-11 (2020)
Abstract The Maxwell electromagnetic theory embedded in an inhomogeneous Lemaître–Tolman–Bondi (LTB) spacetime background was described a few years back in the literature. However, terms concerning the mass or high-derivatives were no explored.
Externí odkaz:
https://doaj.org/article/6ac419dbfd0e4acd8a1634d239ecf1d1
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 4, Pp 1-8 (2019)
Abstract It is well known that, in the context of general relativity, an unknown kind of matter that must violate the strong energy condition is required to explain the current accelerated phase of expansion of the Universe. This unknown component is
Externí odkaz:
https://doaj.org/article/870e557bdae04d258f62adf6fb9e0c65
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 6, Pp 1-1 (2020)
The original version of this article contained some mistakes which were not corrected during the proof process, i.a. stylistic and spelling errors.
Externí odkaz:
https://doaj.org/article/bec6c3606f9646299350e1b69baa74ce
Autor:
Everton M. C. Abreu, Paulo R.F. Alves, Cleber N. Costa, Diego Fiorentini, Jorge Ananias Neto, Victor J. Vasquez Otoya
Publikováno v:
Brazilian Journal of Physics. 53
Autor:
Gabriella V. Ambrósio, Cleber N. Costa, Paulo R. F. Alves, Everton M. C. Abreu, Jorge Ananias Neto, Ronaldo Thibes
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a46cd29437952a3ef4ef503f697eb1a6
http://arxiv.org/abs/2302.10134
http://arxiv.org/abs/2302.10134
Publikováno v:
Gravitation and Cosmology. 27:1-10
We use the canonical formalism of classical mechanics together with the first law of thermodynamics to unveil a differential equation for a minimally coupled canonical scalar field which should be solved simultaneously with the Klein–Gordon equatio
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 8, Pp 1-8 (2020)
European Physical Journal
European Physical Journal
The Alcubierre metric is a spacetime geometry where a massive particle inside a spacetime distortion, called warp bubble, is able to travel at velocities arbitrarily higher than the velocity of light, a feature known as the warp drive. This is a cons