论文标题
迪拉克出生的侵略性drgt的宇宙学大量重力
Cosmology of Dirac-Born-Infeld dRGT massive gravity
论文作者
论文摘要
我们介绍了dirac出生的Infeld DRGT重力理论的宇宙学分析，该理论是De Rham-Gabadadze-Tolley（DRGT）大量重力的新扩展。在这一理论中，我们考虑了与Graviton场耦合的狄拉克出生的式标量（DBI）标量场。此外，我们执行宇宙背景方程，并演示了自动加速背景解决方案。我们表明，该理论包括具有有效宇宙常数的自我加速解决方案。在下文中，我们表现出张量的扰动分析并实现引力波的分散关系。我们分析了DBI DRGT重力中Friedmann-Lema-Robertson-Walker宇宙学中重力扰动的传播。最后，我们提出向量和标量扰动，以显示理论的稳定性条件。
We introduce the cosmological analysis of the Dirac-Born-Infeld dRGT massive gravity theory which is a new extension of de Rham-Gabadadze-Tolley (dRGT) massive gravity. In this theory, we consider the Dirac-Born-Infeld (DBI) scalar field which is coupled to the graviton field. Moreover, we perform the cosmological background equations, and we demonstrate the self-accelerating background solutions. We show that the theory consists of self-accelerating solutions with an effective cosmological constant. In the following, we exhibit tensor perturbations analyses and achieve the dispersion relation of gravitational waves. We analyze the propagation of gravitational perturbation in the Friedmann-Lemaître-Robertson-Walker cosmology in the DBI dRGT massive gravity. Finally, we present the vector and scalar perturbations to show the stability conditions of the theory.
