Zobrazeno 1 - 10
of 456
pro vyhledávání: '"Bellini, Mauricio"'
In the context of an extended General Relativity theory with boundary terms included, we introduce a new nonlinear quantum algebra involving a quantum differential operator, with the aim to calculate quantum geometric alterations when a particle is c
Externí odkaz:
http://arxiv.org/abs/2407.04666
Autor:
Magos, Daniela, Bellini, Mauricio
We investigate the geometric dynamics of the primordial electric and magnetic fields during the early stages of the universe by extending a recently introduced quantum algebra \cite{BMM,BMAS}. We work on an extended model of gravity that considers th
Externí odkaz:
http://arxiv.org/abs/2311.17817
Publikováno v:
Phys.Dark Univ. 38 (2022) 101137
The {\it{Cosmological Boundary Flux Parameter}} is a novel proposal that attempts to explain the origin of the cosmological parameter $\Lambda$ purely by geometric nature. Then we implement this new approach to a flat FLRW universe along with a barot
Externí odkaz:
http://arxiv.org/abs/2206.03609
Publikováno v:
Physics of the Dark Universe, 30 (2020) 100703
We study a collapsing system attracted by a spherically symmetric gravitational source, with an increasing mass, that generates back-reaction effects that are the source of space-time waves. As an example, we consider an exponential collapse and the
Externí odkaz:
http://arxiv.org/abs/2105.02289
Autor:
Bellini, Mauricio
Publikováno v:
Phys. Dark Univ. 30: 100693 (2020)
I use Unified Spinor Fields (USF), to discuss the creation of magnetic monopoles during preinflation, as excitations of the quantum vacuum coming from a condensate of massive charged vector bosons. For a primordial universe with total energy $M_p$, a
Externí odkaz:
http://arxiv.org/abs/2005.07260
We study the emission of large-scales wavelength space-time waves during the inflationary expansion of the universe, produced by back-reaction effects. As an example, we study an inflationary model with variable time scale, where the scale factor of
Externí odkaz:
http://arxiv.org/abs/2004.10252
Publikováno v:
Phys. Dark Univ. 30: 100710 (2020)
We study the interior of a Reissner-Nordstr\"om Black-Hole (RNBH) using Relativistic Quantum Geometry, which was introduced in some previous works. We found discrete energy levels for a scalar field from a polynomial condition for the Heun Confluent
Externí odkaz:
http://arxiv.org/abs/2004.01799
We study the emission of space-time waves produced by back-reaction effects during a collapse of a spherically symmetric universe with a time dependent cosmological parameter, which is driven by a scalar field. As in a previous work the final state a
Externí odkaz:
http://arxiv.org/abs/1912.04790
Publikováno v:
In Physics of the Dark Universe December 2023 42
