Zobrazeno 1 - 10
of 376
pro vyhledávání: '"Santos, R. C."'
The entire classical cosmological history between two extreme de Sitter vacuum solutions is discussed based on Einstein's equations and non-equilibrium thermodynamics. The initial non-singular de Sitter state is characterised by a very high energy sc
Externí odkaz:
http://arxiv.org/abs/2408.16911
Publikováno v:
Check List, Vol 5, Iss 3, Pp 533-536 (2009)
Externí odkaz:
https://doaj.org/article/37e9e04fab5d4692831d806b305d9385
Autor:
Cechin, S. Z., Santos, R. C., D’Agostini, F. M., Both, C., Santos-Jr, A. P., Lingnau, R., Colombo, P., Kaefer, I. L., Zank, C.
Publikováno v:
Check List, Vol 4, Iss 1, Pp 89-91 (2008)
Externí odkaz:
https://doaj.org/article/eaa6d4088d4e4dc7a11216bc5f03c954
Autor:
Lima, J. A. S., Santos, R. C.
A century after observing the deflection of light emitted by distant stars during the solar eclipse of 1919, it is interesting to know the concepts emerged from the experiment and the theoretical and observational consequences for modern cosmology an
Externí odkaz:
http://arxiv.org/abs/2001.01549
Akademický článek
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Autor:
Lima, J. A. S., Santos, R. C.
Publikováno v:
Revista Brasileira de Ensino de F\'isica, vol. 40, 1, e1313 (2018)
We are experiencing a period of extreme intellectual effervescence in the area of cosmology. A huge volume of observational data in unprecedented quantity and quality and a more consistent theoretical framework propelled cosmology to an era of precis
Externí odkaz:
http://arxiv.org/abs/1709.03693
We show that a cosmology driven by gravitationally induced particle production of all non-relativistic species existing in the present Universe mimics exactly the observed flat accelerating $\Lambda$CDM cosmology with just one dynamical free paramete
Externí odkaz:
http://arxiv.org/abs/1508.07263
Decaying vacuum cosmological models evolving smoothly between two extreme (very early and late time) de Sitter phases are capable to solve or at least to alleviate some cosmological puzzles, among them: (i) the singularity, (ii) horizon, (iii) gracef
Externí odkaz:
http://arxiv.org/abs/1508.06344
Publikováno v:
Phys. Rev. D 89, 067301 (2014)
Light is affected by local inhomogeneities in its propagation, which may alter distances and so cosmological parameter estimation. In the era of precision cosmology, the presence of inhomogeneities may induce systematic errors if not properly account
Externí odkaz:
http://arxiv.org/abs/1301.5360
Autor:
Dalmazi, D., Santos, R. C.
By means of a triple master action we deduce here a linearized version of the "New Massive Gravity" (NMG) in arbitrary dimensions. The theory contains a 4th-order and a 2nd-order term in derivatives. The 4th-order term is invariant under a generalize
Externí odkaz:
http://arxiv.org/abs/1212.6753