Zobrazeno 1 - 10
of 167
pro vyhledávání: '"SANTOS, J. R. P."'
Publikováno v:
Phys. Rev. D 106 (2022) 048502
Recently, Avik De and L.T. How claim that we have not followed an effective theory approach for $f(Q)$ gravity, missing relevant terms to compute the energy conditions [Phys. Rev. D 102, 024057 (2020)]. They also state that we did not present how the
Externí odkaz:
http://arxiv.org/abs/2208.13636
It is well known in the literature that vacuum fluctuations can induce a random motion of particles which is sometimes called quantum Brownian motion or quantum stochastic motion. In this paper, we consider Lorentz Invariance Violation (LIV) in an ac
Externí odkaz:
http://arxiv.org/abs/2106.09684
Publikováno v:
Physics of the dark Universe, 31 (2021) 100790
We are living in a golden age for experimental cosmology. New experiments with high accuracy precision are been used to constrain proposals of several theories of gravity, as it has been never done before. However, important roles to constrain new th
Externí odkaz:
http://arxiv.org/abs/2009.00240
Publikováno v:
Physical Review D, 102(2) (2020) 024057
A complete theory of gravity impels us to go beyond Einstein's General Relativity. One promising approach lies in a new class of teleparallel theory of gravity named $f(Q)$, where the nonmetricity $Q$ is responsible for the gravitational interaction.
Externí odkaz:
http://arxiv.org/abs/2008.01563
Publikováno v:
Eur. Phys. J. Plus 135, 576 (2020)
The article presents modeling of inflationary scenarios for the first time in the $f(R,T)$ theory of gravity. We assume the $f(R,T)$ functional from to be $R + \eta T$, where $R$ denotes the Ricci scalar, $T$ the trace of the energy-momentum tensor a
Externí odkaz:
http://arxiv.org/abs/2006.04336
We here propose to model active and cumulative cases data from COVID-19 by a continuous effective model based on a modified diffusion equation under Lifshitz scaling with a dynamic diffusion coefficient. The proposed model is rich enough to capture d
Externí odkaz:
http://arxiv.org/abs/2005.03506
Autor:
Abdalla, E., Albuquerque, I. F. M., Alves, A., Barosi, L., Bazetto, M. C. Q., Batista, R. C., Bernardes, C. A., Bonifazi, C., Borges, H. A., Brito, F. A., Caramês, T. R. P., Casarini, L., Cogollo, D., Dias, A. G., Esmaili, A., Ferreira, M. M., da Silveira, G. Gil, Guzzo, M. M., Hadjimichef, D., de Holanda, P. C., Kemp, E., Lessa, A., Lichtenstein, G., Machado, A. A., Makler, M., Marra, V., Matheus, R. D., Mercadante, P. G., de Melo, T. B., Nishi, C., Nepomuceno, A., Novaes, S. F., Pimentel, V. L., Pinheiro, P. R. D., Pires, C. A., Queiroz, A. R., Queiroz, F. S., Rangel, M. ~S., Rodrigues, D. C., Rodrigues, J. G., de Souza, V., da Silva, P. S. Rodrigues, Siqueira, C., Segreto, E., Sanchez-Vega, B. L., Rosenfeld, R., Santos, J. R. L., Santos, A. C. O., Silva, R., Sokolowska, D., Teles, P. R., Tomei, T. R. F. P., Valdiviesso, G. A., Vasconcelos, P., Viana, A.
This white paper summarizes the activities of the Brazilian community concerning dark matter physics and highlights the importance of financial support to Brazilian groups that are deeply involved in experimental endeavours. The flagships of the Braz
Externí odkaz:
http://arxiv.org/abs/1912.10076
In this paper, we present the cosmological scenario obtained from $f(R,T)$ gravity by using an exponential dependence on the trace of the energy-momentum tensor. With a numerical approach applied to the equations of motion, we show several precise fi
Externí odkaz:
http://arxiv.org/abs/1911.02669
The nature of gravity and its strength compared with other forces are fundamental challenges faced by the actual science. A path to understanding the hierarchy problem of gravity consists in adding an extra dimension to Einstein-Hilbert's general rel
Externí odkaz:
http://arxiv.org/abs/1911.00191
In this work, we apply the so-called BPS method in order to obtain topological defects for a complex scalar field Lagrangian introduced by Trullinger and Subbaswamy. The BPS approach led us to compute new analytical solutions for this model.In our in
Externí odkaz:
http://arxiv.org/abs/1809.04661