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Energy conditions in f q gravity

WebJul 20, 2024 · In this work, we are aiming to explore the cosmological bouncing scenarios in symmetric teleparallel gravity (i.e., f ( Q) gravity). This manuscript is organized as follows: in Sect. 2, we briefly discuss the gravitational formalism for f ( Q) gravity. In Sect. 3, we present the energy conditions. Then, we discuss different types of bouncing ... WebIn this paper, we studied the strong, the weak, the null, and the dominant energy conditions for f (Q) gravity, working with a perfect fluid matter distribution. The actual accelerating phase our Universe passes through, constraints that the strong energy condition should be violated.

Phantom Dark Energy Nature of Bulk-Viscosity Universe …

WebDOI: 10.1142/s0219887822501985 Corpus ID: 250413973; Phantom Dark Energy Nature of Bulk-Viscosity Universe in Modified f(Q)-Gravity @article{Dixit2024PhantomDE, title={Phantom Dark Energy Nature of Bulk-Viscosity Universe in Modified f(Q)-Gravity}, author={Archana Dixit and Dinesh Chandra Maurya and Anirudh Pradhan}, … WebThe IEA 15 MW wind turbine with a rotor diameter of D=240 m and a rated power of 15 MW is used (Gaertner et al., 2024).The hub height is set to 180 m instead of 150 m, so that the turbulent fluxes at the rotor bottom are better resolved by the numerical grid.The wind turbines are arranged in a staggered configuration and have a streamwise and crosswise … county for zip code 61350 https://theeowencook.com

Accretion process of a black hole in scalar field dark energy …

WebSep 1, 2024 · Varying the gravitational action (1), the field equation of f ( Q, T) gravity can be obtained as, − 2 − g k ( f Q − g P μ ν k) − 1 2 f g μ ν + f T ( T μ ν + Θ μ ν) − f Q ( P μ k l Q ν k l − 2 Q μ k l P k l ν) = 8 π T μ ν, where f Q = ∂ f ( Q, T) ∂ Q, the energy momentum tensor, T μ ν ≡ − 2 − g δ ( − g L m) δ g μ ν, Θ μ ν ≡ g α β δ T α β δ g μ ν. WebIn relativistic classical field theories of gravitation, particularly general relativity, an energy condition is a generalization of the statement "the energy density of a region of space … WebAug 10, 2024 · Abstract: We propose an extension of the symmetric teleparallel gravity, in which the gravitational action $L$ is given by an arbitrary function $f$ of the nonmetricity … brewster structure of the eye lenses

(PDF) Energy conditions in f ( Q,T ) gravity - ResearchGate

Category:Complete dark energy scenario in f(Q) gravity - ScienceDirect

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Energy conditions in f q gravity

Energy conditions in f(Q, T) gravity - IOPscience

WebSep 1, 2024 · In this paper, we have examined the recently proposed modified symmetric teleparallel gravity, in which gravitational Lagrangian is given by an arbitrary function of non-metricity scalar Q. We have… PDF Coupling between DBI dark energy model and f (Q) gravity and its effect on condensed body mass accretion WebIn an effort to reduce greenhouse gas emissions, experts are looking to substitute fossil fuel energy with renewable energy for environmentally sustainable and emission free societies. This paper presents the hybridization of particle swarm optimization (PSO) with grey wolf optimization (GWO), namely a hybrid PSO-GWO algorithm for the solution of optimal …

Energy conditions in f q gravity

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Web8. Gravitation is something that gives rise to a force. Like most forces, it can be put to work, just like in dams. But gravitation is not energy: it's an interaction between physical … WebOct 10, 2012 · The fundamental elements of f ( R, Lm) gravity are given in section 2. In section 3, the well-known energy conditions, namely the strong energy condition (SEC), the null energy condition (NEC), the weak energy condition (WEC) and the dominant energy condition (DEC) are derived in f ( R, Lm) gravity.

WebMar 30, 2024 · The article presented a thorough investigation of gravitational baryogenesis interactions in the framework of \(f(Q,{\mathcal { T}})\) gravity where Q denote the nonmetricity and \({\mathcal { T}}\) the trace of the energy momentum tensor. For this type of modified gravity we find the baryon-to-entropy ratio to be proportional to \(\dot{Q}\), … WebDec 9, 2024 · The f(Q) gravity (where Q is the non-metricity scalar) is a recently proposed non-metricity-based modified gravity proposed by Jimenez et al. . Although, it is recently proposed gravity, many interesting works have already been done, such as, cosmography [ 47 ], energy conditions [ 48 ], covariant formulation [ 49 ], signature of f ( Q ...

WebSep 1, 2024 · Energy conditions. In Section 2, we have mentioned the importance of the energy conditions in describing a model. Also, given the extension of the symmetric teleparallel gravity, the f (Q, T) theory, we made a comprehensive discussion on what should be the additional conditions followed by a bouncing model. In fact, the … WebThe energy conditions and the Dolgov-Kawasaki criterion in generalized gravity with arbitrary coupling between matter and geometry are derived in this paper, which are …

WebApr 11, 2024 · (2024), the authors studied energy conditions in f ( Q ) theory following the same path as researchers handled the energy conditions in the curvature-based …

WebJul 8, 2024 · In this work, we present a complete test of energy conditions for f (Q) gravity models. The energy conditions allowed us to fix our free parameters, restricting the … county for zip code 61761WebNov 30, 2024 · Wormhole geometries in f ( Q) gravity and the energy conditions Ayan Banerjee Anirudh Pradhan Farook Rahaman Regular Article - Theoretical Physics Open Access Published: 25 November 2024 Article: 1031 Variational theory of the Ricci curvature tensor dynamics Claudio Cremaschini Jiří Kovář Massimo Tessarotto Letter Open Access brewster street corpus christi menuWebApr 4, 2024 · In the current study, we investigate the possible existence of new wormhole solutions within f(Q) gravity by using the conformal symmetry, where Q is a non-metricity scalar. Modified versions of field equations within the scope of conformal symmetry with an anisotropic source of matter are calculated using the variational approach. We consider … county for zip code 62221WebJul 6, 2024 · Download a PDF of the paper titled Cosmology in $f(Q)$ gravity: A unified dynamical system analysis at background and perturbation levels, by Wompherdeiki Khyllep and ... brewster st riverview nbbrewster street icehouse ticketsWebAnswer (1 of 37): The electrostatic force and gravitational force are a lot like the force of acceleration. If you shake an object back and forth, it experiences a force of … county for zip code 62223WebAug 1, 2024 · In f (Q) gravity, the action is given by Mandal et al. (2024); De et al. (2024); Shekh (2024b) (1) S = ∫ [− 1 2 f (Q) + L m] d 4 x − g, where f (Q) is an arbitrary function … county for zip code 62249