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The non-singular model of the Universe i.e. emergent scenario is now very well known in cosmology. In Einstein gravity such type of singularity free solution is possible in the context of non-equilibrium thermodynamical prescription (both…

General Relativity and Quantum Cosmology · Physics 2020-11-11 Akash Bose , Subenoy Chakraborty

We explore the well know mass deficit/surplus phenomenon in General Relativity to suggest that it could play a part in the dark matter conundrum. Specifically in collapses and condensations of matter associated with negative intrinsic…

General Relativity and Quantum Cosmology · Physics 2025-07-17 Raymond Isichei , Joao Magueijo

We present a new mechanism for addressing the cosmological constant problem based on global constraints arising from a lapse function in a higher-dimensional gravitational theory. Inspired by Horava-Lifshitz gravity, we consider a 5d…

High Energy Physics - Theory · Physics 2026-04-13 Justin Khoury , Benjamin Muntz , Antonio Padilla

We study the most general case of spherically symmetric vacuum solutions in the framework of the Covariant Horava Lifshitz Gravity, for an action that includes all possible higher order terms in curvature which are compatible with…

High Energy Physics - Theory · Physics 2011-04-29 Jean Alexandre , Pavlos Pasipoularides

The exact solution for a static spherically symmetric field outside a charged point particle is found in a non-linear $U(1)$ gauge theory with a logarithmic Lagrangian. The electromagnetic self-mass is finite, and for a particular relation…

High Energy Physics - Theory · Physics 2009-10-28 Harald H. Soleng

We perform the phase space analysis in terms of the linearization technique in the Ho\v{r}ava-Lifshitz gravity with the softly broken detailed balance condition. It can be shown that the bouncing universe appears only for the positive…

General Relativity and Quantum Cosmology · Physics 2011-04-21 Edwin J. Son , Wontae Kim

In this paper, we investigate the scalar quasinormal modes of Ho\v{r}ava-Lifshitz theory with $U(1)$ symmetry in static Anti-de Sitter spacetime. The static planar and spherical black hole solutions in lower energy limit are derived in…

General Relativity and Quantum Cosmology · Physics 2016-09-21 Kai Lin , Wei-Liang Qian , A. B. Pavan

The Horava-Lifshitz gravity, having broken the symmetry of space and time, includes three objects: the spatial metric $g_{ij}$, the lapse variable $N$, and the shift variable $N_{i}$. Each of these objects have their own scaling dimensions.…

High Energy Physics - Theory · Physics 2009-12-31 Qasem Exirifard

In the context of Horava gravity, the most promising known scenarios to recover Lorentz invariance at low energy are the possibilities that (1) the renormalization group flow of the system leads to emergent infrared Lorentz invariance, and…

High Energy Physics - Theory · Physics 2019-10-02 Andrew Coates , Charles Melby-Thompson , Shinji Mukohyama

Horava gravity theory possesses global Lifshitz space as a solution and has been conjectured to provide a natural framework for Lifshitz holography. We derive the conditions on the two derivative Horava gravity Lagrangian that are necessary…

High Energy Physics - Theory · Physics 2016-04-06 Sayandeb Basu , Jishnu Bhattacharyya , David Mattingly , Matthew Roberson

We investigate the holographic dark energy scenario with a varying gravitational constant in a flat background in the context of Ho\v{r}ava-Lifshitz gravity. We extract the exact differential equation determining the evolution of the dark…

High Energy Physics - Theory · Physics 2014-11-20 M. R. Setare , Mubasher Jamil

A proposal for a power-counting renormalizable theory of quantum gravity at a Lifshitz point was recently put forth by Horava (arXiv:0901.3775), and has been since dubbed as Horava-Lifshitz gravity. The theory explicitly breaks Lorentz…

High Energy Physics - Theory · Physics 2009-11-05 Niayesh Afshordi

Recently, a renormalizable gravity theory with higher spatial derivatives in four dimensions was proposed by Ho\v{r}ava. The theory reduces to Einstein gravity with a non-vanishing cosmological constant in IR, but it has improved UV…

General Relativity and Quantum Cosmology · Physics 2011-04-20 Tiberiu Harko , Zoltan Kovács , Francisco S. N. Lobo

In this paper we show that by considering a slightly modified Horava-Lifshitz gravity one can find self-tuning cosmological scenarios. Since in the proposed model the cosmological constant cancels out, then regardless of its value it cannot…

High Energy Physics - Theory · Physics 2012-12-27 D. Bazeia , F. A. Brito , F. G. Costa

In this work we study a modified theory of gravity that contains up to fourth order spatial derivatives as a model for the Horava-Lifshitz gravity. The propagator is evaluated and, as a result, it is obtained one extra pole corresponding to…

High Energy Physics - Theory · Physics 2011-10-13 F. S. Bemfica , M. Gomes

We studied the low energy motion of particles in the general covariant version of Horava-Lifshitz gravity proposed by Horava and Melby-Thompson. Using a scalar field coupled to gravity according to the minimal substitution recipe proposed…

High Energy Physics - Theory · Physics 2011-12-22 Elcio Abdalla , Alan M. da Silva

Using the dynamical system approach, properties of cosmological models based on the Horava-Lifshitz gravity are systematically studied. In particular, the cosmological phase space of the Horava-Lifshitz model is characterized. The analysis…

High Energy Physics - Theory · Physics 2015-05-14 Sante Carloni , Emilio Elizalde , Pedro J. Silva

We investigate the gravitational lensing effect in the strong field background around the Schwarzschild black hole with extremely small mass and solid deficit angle subject to the global monopole by means of the strong field limit issue. We…

High Energy Physics - Theory · Physics 2015-07-01 Hongbo Cheng , Jingyun Man

We find spherically symmetric solutions in the modified Ho\v{r}ava-Lifshitz gravity proposed recently by Blas, Pujolas and Sibiryakov. The non-linear equations of the two derivative action turn out to be similar to those stemming from the…

High Energy Physics - Theory · Physics 2010-12-21 Elias Kiritsis

Approximately one year ago Horava proposed a power-counting renormalizable theory of gravity which abandons local Lorentz invariance. The proposal has been received with growing interest and resulted in various different versions of…

General Relativity and Quantum Cosmology · Physics 2011-06-03 Silke Weinfurtner , Thomas P. Sotiriou , Matt Visser