论文标题

$ f(q)$重力中的能源条件

Energy Conditions in $f(Q)$ gravity

论文作者

Mandal, Sanjay, Sahoo, P. K., Santos, J. R. L.

论文摘要

一个完整的重力理论促使我们超越了爱因斯坦的一般相对论。一种有前途的方法在于一种新的触觉关爱理论,名为$ f(q)$,其中非赞成度$ q $负责引力相互作用。这些替代理论中的任何一个重要的作用都应遵守能量条件的限制。这样的约束建立了给定理论与时空的因果关系结构的兼容性。在这项工作中,我们为$ f(q)$重力模型提供了对能源条件的完整测试。能源条件使我们能够修复免费参数,从而限制了$ f(q)$模型与我们宇宙通过的加速扩展相吻合的家庭。我们的结果是$ f(q)$理论的生存能力,导致我们接近一个完整的引力理论的曙光。

A complete theory of gravity impels us to go beyond Einstein's General Relativity. One promising approach lies in a new class of teleparallel theory of gravity named $f(Q)$, where the nonmetricity $Q$ is responsible for the gravitational interaction. The important roles any of these alternative theories should obey are the energy condition constraints. Such constraints establish the compatibility of a given theory with the causal and geodesic structure of space-time. 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 families of $f(Q)$ models compatible with the accelerated expansion our Universe passes through. Our results straight the viability of $f(Q)$ theory, leading us close to the dawn of a complete theory for gravitation.

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