Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Marcelo Schiffer"'
Autor:
Marcelo Schiffer
Publikováno v:
Symmetry, Vol 13, Iss 8, p 1417 (2021)
It is a well-known fact that the Newtonian description of dynamics within Galaxies for its known matter content is in disagreement with the observations as the acceleration approaches a0≈1.2×10−10 m/s2 (slighter larger for clusters). Both the Da
Externí odkaz:
https://doaj.org/article/78cd08c64f194b718120078f9562de36
Publikováno v:
Universe, Vol 7, Iss 2, p 40 (2021)
We discuss the possibility that gravitational fluctuations (“gravitational-waves”) are trapped in space by gravitational interactions in two dimensional Jackiw–Teitelboim gravity. In the standard geon (gravitational electromagnetic entity) appr
Externí odkaz:
https://doaj.org/article/9e62a9f4251d4a88aa697542cb3a308e
Publikováno v:
Universe, Vol 7, Iss 40, p 40 (2021)
Universe
Volume 7
Issue 2
Universe
Volume 7
Issue 2
We discuss the possibility that gravitational fluctuations (“gravitational-waves”) are trapped in space by gravitational interactions in two dimensional Jackiw–Teitelboim gravity. In the standard geon (gravitational electromagnetic entity) appr
Publikováno v:
Physica D: Nonlinear Phenomena. 237:2553-2562
The stabilizing effects of local enrichment are revisited. Diffusively coupled host-parasitoid and predator-prey metapopulations are shown to admit a stable fixed point, limit cycle or stable torus with a rich bifurcation structure. A linear toy mode
Autor:
Marcelo Schiffer
Publikováno v:
Symmetry
Volume 13
Issue 8
Symmetry, Vol 13, Iss 1417, p 1417 (2021)
Volume 13
Issue 8
Symmetry, Vol 13, Iss 1417, p 1417 (2021)
It is a well-known fact that the Newtonian description of dynamics within Galaxies for its known matter content is in disagreement with the observations as the acceleration approaches a0≈1.2×10−10 m/s2 (slighter larger for clusters). Both the Da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::392bdaa7172b7cf91b7444498dd8c511
Autor:
Marcelo Schiffer, Alberto Saa
Publikováno v:
Modern Physics Letters A. 13:1557-1564
In this essay we show that an uncharged black-hole moving superluminally in a transparent dielectric medium violates Hawking's area theorem. The violation is overcome through the emission of radiation. Since modes cannot emerge from the black hole it
Autor:
Marcelo Schiffer
”In a spiral galaxy, the ratio of dark-to-light matter is about a factor of ten. That’s probably a good number for the ratio of our ignorance-to-knowledge. We’re out of kindergarten, but only in about third grade.” Vera Rubin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1f93caa13295aa7fa6633fe924c1bba
https://doi.org/10.2174/978160805195311101010166
https://doi.org/10.2174/978160805195311101010166
Liquid marbles, which are droplets coated with a hydrophobic powder, were exposed to a uniform electric field. It was established that a threshold value of the electric field, 15 cgse, should be surmounted for deformation of liquid marbles. The shape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efe8d80b0b6f98c8d68e08f17cb3208a
Autor:
Ulf H. Danielsson, Marcelo Schiffer
Publikováno v:
Physical Review D. 48:4779-4784
The purpose of this paper is to analyse, in the light of information theory and with the arsenal of (elementary) quantum mechanics (EPR correlations, copying machines, teleportation, mixing produced in sub-systems owing to a trace operation, etc.) th
Publikováno v:
Physics Letters A. 172:203-207
In order that confinement should survive, light quarks inside hadrons have a very high acceleration and will feel a thermal bath with an Unruh temperature near 137 MeV. We show that this temperature is consistent with the experimentally observed depa