Results 11 to 20 of about 149 (114)
Deformed Starobinsky model in gravity’s rainbow [PDF]
European Physical Journal C: Particles and Fields, 2019 In the context of gravity’s rainbow, we study the deformed Starobinsky model in which the deformations take the form $$f(R)\sim R^{2(1-\alpha )}$$ f(R)∼R2(1-α) , with R and $$\alpha $$ α being the Ricci scalar and a positive parameter, respectively.
Phongpichit Channuie
doaj +3 more sources
Classical and Quantum Gravity, 2004 Version to be published in Classical and Quantum ...
Magueijo, João, Smolin, Lee
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Branes in Gravity’s Rainbow [PDF]
The European Physical Journal C, 2016 En este trabajo investigamos la termodinámica de las p-branas negras (BB) en el contexto de Gravity 's Rainbow. Investigamos esto utilizando funciones de arco iris que han sido motivadas por la gravedad cuántica de bucle y el espacio-tiempo no conmutativo $$\kappa $ $ -Minkowski.
Amani Ashour +3 more
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Integrated Environmental Assessment and Management, EarlyView., 2023 Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves +6 more
wiley +1 more source
Gravity’s Rainbow and traversable wormholes [PDF]
The Fourteenth Marcel Grossmann Meeting, 2017 In the context of Gravity's Rainbow, we compute the graviton one-loop contribution to a classical energy in a traversable wormhole background, by considering the equation of state $p_{r} = ωρ$. The investigation is evaluated by means of a variational approach with Gaussian trial wave functionals.
Garattini, Remo, Lobo, Francisco S. N.
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Gravity’s Rainbow and compact stars [PDF]
The Fourteenth Marcel Grossmann Meeting, 2017 A number of recent studies has focused on the implications of new physics at the Planck scale on the equilibrium of compact astrophysical objects such as white dwarf and neutron stars. Here we analyze the modification of the equilibrium configurations induced by the so-called Gravity's Rainbow that account for Planck scale deformation of the space-time.
Garattini, Remo, Mandanici, Gianluca
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Gravitational collapse in gravity's rainbow [PDF]
International Journal of Geometric Methods in Modern Physics, 2015 In this paper, we will analyze the gravitational collapse in the framework of gravity's rainbow. We will demonstrate that the position of the horizon for a particle inside the black hole depends on the energy of that particle. It will also be observe that the position of the horizon for a particle falling radially into the black hole also depends on ...
Ali, Ahmed Farag +3 more
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General Relativity and Gravitation, 1993 Could COBE DMR be detecting the imprint from a spectrum of gravitational waves generated during inflation? The conventional inflationary prediction had been that the cosmic microwave anisotropy is dominated by energy density fluctuations generated during inflation and that the gravitational waves contribute negligibly.
Smoot, George F., Steinhardt, P.J.
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Starobinsky model in rainbow gravity [PDF]
Physical Review D, 2016 In this paper, we study the Starobinsky model of inflation in the context of gravity's rainbow theory. We propose that gravity rainbow functions can be written in the power-law form of the Hubble parameter. We present a detailed derivation of the spectral index of curvature perturbation and the tensor-to-scalar ratio and compare the predictions of our ...
Chatrabhuti, Auttakit +2 more
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Cosmic string in gravity’s rainbow [PDF]
Astrophysics and Space Science, 2017 accepted in "Astrophys Space Sci"
Momeni, Davood +3 more
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