论文标题
爱因斯坦 - 马克斯韦斯 - 高斯重力重力中DS相变的重力广告
Gravitational AdS to dS phase transition in Einstein-Maxwell-Gauss-Bonnet gravity
论文作者
论文摘要
在这项工作中，我们重新审视了Camanho {\ it.al。} [JHEP 10（2015）179]提出的玩具模型，并通过将Maxwell场作为不杂质替代而广泛研究了从ADS到DS几何形状的引力相变到DS几何形状的可能存在。我们表明，相变是通过溶液的不同分支描述的球形薄壳的气泡成核进行的，该溶液在内部内有一个黑洞。为了证明相变的存在，我们研究了自由能和温度如何取决于高阶重力耦合$（λ）$，表明hyteralon介导的相变的可能性。我们观察到，所需的（最高）温度低于中性情况的相机的相变是可能的。有趣的是，我们还发现，在充电时，对相变的临界温度和耦合$λ$进行了修改。此外，我们的结果与以下主张一致：广义重力相变是高阶重力理论的通用行为，甚至添加了物质场。
In this work, we revisit a toy model proposed by Camanho {\it et.al.} [JHEP 10 (2015) 179] and extensively study the possible existence of gravitational phase transition from AdS to dS geometries by adding the Maxwell field as an impurity substitution. We show that the phase transitions proceed via the bubble nucleation of spherical thin-shells described by different branches of the solution which host a black hole in the interior. In order to demonstrate the existence of the phase transition, we examine how the free energy and temperature depend on the higher-order gravity coupling $(λ)$ indicating the possibility of thermalon mediated phase transition. We observe that the phase transitions of the charged case is possible in which the required (maximum) temperature is lower than that of the neutral case. Interestingly, we also discover that the critical temperature and the coupling $λ$ of the phase transitions are modified when having the charge. In addition, our results agree with the claim that the generalized gravitational phase transition is a generic behavior of the higher-order gravity theories even the matter field is added.
