论文标题
De Sitter黑洞的热力学,具有共形耦合标量场
Thermodynamics of de Sitter Black Holes with Conformally Coupled Scalar Fields
论文作者
论文摘要
我们研究了在渐近的安静时间中3+1维黑孔的热力学特性,并与真实的标量场耦合。我们使用欧几里得动作方法,其中在黑洞外面指定边界值数据在有限的半径“空腔”中指定,在扩展的相空间中工作,其中宇宙常数被视为热力压力。我们通过它们的自由能检查了这些黑洞的相结构。对于溶液的MTZ子类,我们发现了从黑洞时空到具有标量场的热型de Sitter的类似鹰页的相变。在更一般的情况下,也存在类似霍金页的相变,其存在进一步取决于特定的宇宙审查制度。
We investigate the thermodynamic properties of 3+1 dimensional black holes in asymptotically de Sitter spacetimes, conformally coupled to a real scalar field. We use a Euclidean action approach, where boundary value data is specified at a finite radius `cavity' outside the black hole, working in the extended phase space where the cosmological constant is treated as a thermodynamic pressure. We examine the phase structure of these black holes through their free energy. For the MTZ subclass of solutions, we find Hawking-Page-like phase transitions from a black hole spacetime to thermal de Sitter with a scalar field. In the more general case, Hawking-Page-like phase transitions are also present, whose existence depends further on a particular cosmic censorship bound.