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Related papers: A Proposal for Testing Gravity's Rainbow

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The gravity's rainbow function is derived in terms of a new varying speed of light (VSL) theory that varying velocity of light in the rainbow gravity becomes smaller when the energy of photons increases. In light of the new theory we…

General Relativity and Quantum Cosmology · Physics 2024-12-10 Ying-Jie Zhao , Xiaojie Li , Guang-Rui Yao , Yan-Fang Ji , Nisar Ahmad

We compute the Zero Point Energy in a spherically symmetric background distorted at high energy as predicted by \textit{Gravity's Rainbow}. In this context we setup a Sturm-Liouville problem with the cosmological constant considered as the…

General Relativity and Quantum Cosmology · Physics 2011-04-22 Remo Garattini , Gianluca Mandanici

The linear relation between the entropy and area of a black hole can be derived from the Heisenberg principle, the energy-momentum dispersion relation of special relativity, and general considerations about black holes. There exist results…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Pablo Galan , Guillermo A. Mena Marugan

The energy of a particle moving on a spacetime, in principle, can affect the background metric. The modifications to it depend on the ratio of energy of the particle and the Planck energy, known as rainbow gravity. Here we find the explicit…

General Relativity and Quantum Cosmology · Physics 2017-12-06 Gaurav Yadav , Baby Komal , Bibhas Ranjan Majhi

We re-examine a recently proposed scenario where the deformed dispersion relations associated with a flow of the spectral dimension to a UV value of 2 leads to a scale-invariant spectrum of cosmological fluctuations, without the need for…

General Relativity and Quantum Cosmology · Physics 2015-06-16 Giovanni Amelino-Camelia , Michele Arzano , Giulia Gubitosi , Joao Magueijo

In this paper, we explore the relativistic quantum motion of spin-zero scalar charge-free particles influenced by rainbow gravity's (RG's) in Bonnor-Melvin magnetic space-time, a four-dimensional solution featuring a positive cosmological…

General Relativity and Quantum Cosmology · Physics 2024-10-15 Faizuddin Ahmed , Abdelmalek Bouzenada

In this paper, we consider a spherical symmetric metric to extract the hydrostatic equilibrium equation of stars in $(3+1)-$dimensional gravity's rainbow in the presence of cosmological constant. Then, we generalize the hydrostatic…

High Energy Physics - Theory · Physics 2016-09-19 S. H. Hendi , G. H. Bordbar , B. Eslam Panah , S. Panahiyan

Occurrence of spacetime singularities is one of the peculiar features of Einstein gravity, signalling limitation on probing short distances in spacetime. This alludes to the existence of a fundamental length scale in nature. On contrary,…

General Relativity and Quantum Cosmology · Physics 2020-12-21 Omar El-Refy , Syed Masood , Li-Gang Wang , Ahmed Farag Ali

In this paper, we analyze Vaidya spacetime with an energy dependent metric in Galileon gravity's rainbow. This will be done using the rainbow functions which are motivated from the results obtained in loop quantum gravity approach and…

General Relativity and Quantum Cosmology · Physics 2016-06-28 Prabir Rudra , Mir Faizal , Ahmed Farag Ali

Conformal transformation as a mathematical tool has been used in many areas of gravitational physics. In this paper, we would consider the gravity's rainbow, in which the metric could be treated as a conformal rescaling of the original…

General Relativity and Quantum Cosmology · Physics 2018-02-21 Miao He , Ping Li , Zi-Liang Wang , Jia-Cheng Ding , Jian-Bo Deng

We investigate the classical and quantum dynamics of $f(R)$ gravity's rainbow in the presence of a perfect fluid, employing Schutz's formalism to establish a well-defined notion of time. In the classical regime, we derive and solve the…

General Relativity and Quantum Cosmology · Physics 2025-07-02 Andrés Burton-Villalobos , Giovanni Otalora , Manuel Gonzalez-Espinoza , Yoelsy Leyva

In this paper, we will analyze the energy dependent deformation of massive gravity using the formalism of massive gravity's rainbow. So, we will use the Vainshtein mechanism and the dRGT mechanism for the energy dependent massive gravity,…

General Relativity and Quantum Cosmology · Physics 2017-10-03 Yaghoub Heydarzade , Prabir Rudra , Farhad Darabi , Ahmed Farag Ali , Mir Faizal

Motivated by UV completion of general relativity with a modification of a geometry at high energy scale, it is expected to have an energy dependent geometry. In this paper, we introduce charged black hole solutions with power Maxwell…

General Relativity and Quantum Cosmology · Physics 2016-09-19 S. H. Hendi , B. Eslam Panah , S. Panahiyan , M. Momennia

Rainbow metrics are a widely used approach to metric formalism for theories with Modified Dispersion Relations. They have had a huge success in the Quantum Gravity Phenomenology literature, since they allow to introduce momentum-dependent…

General Relativity and Quantum Cosmology · Physics 2017-07-11 Iarley P. Lobo , Niccoló Loret , Francisco Nettel

The existence of a minimum time uncertainty is usually argued to be a consequence of the combination of quantum mechanics and general relativity. Most of the studies that point to this result are nonetheless based on perturbative…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Pablo Galan , Guillermo A. Mena Marugan

We investigate the gravitational baryogenesis scenario within the context of $F(R)$ gravity's rainbow which incorporates both modified gravity and energy-dependent spacetime. This study explores a mechanism for generating baryon asymmetry…

General Relativity and Quantum Cosmology · Physics 2026-02-09 Parviz Goodarzi

The usual Einstein's equations is modified as a one parameter family of equations in the framework of rainbow gravity. In this paper we derive the modified Friedmann-Robertson-Walker (FRW) equations when the cosmological evolution of…

General Relativity and Quantum Cosmology · Physics 2010-04-15 Yi Ling , Qingzhang Wu

In this paper, we proposed that at each point of spacetime, in addition to the Riemannian metric tensor which describes the geometry of spacetime and the gravitational field, there is an rainbow metric tensor which shows the geometry of…

General Relativity and Quantum Cosmology · Physics 2019-05-15 Ping-Li , Jia-Cheng Ding , Qi-Qi Fan , Xian-Ru Hu , Jian-Bo Deng

We analyze the dynamics of scalar particles in gravity's rainbow considering the space-time of a cosmic string in this modified gravity. Thus, we solve the Klein-Gordon equation for two types of potential in which two possible rainbow…

General Relativity and Quantum Cosmology · Physics 2020-12-16 L. C. N. Santos , C. E. Mota , C. C. Barros , L. B. Castro , V. B. Bezerra

The hypersurface deformation algebra consists in a fruitful approach to derive deformed solutions of general relativity based on symmetry considerations with quantum gravity effects, whose linearization has been recently demonstrated to be…

General Relativity and Quantum Cosmology · Physics 2018-12-06 Iarley P. Lobo , Michele Ronco