论文标题
部分可观测时空混沌系统的无模型预测
Thermodynamically Stable Phases of Asymptotically Flat Lovelock Black Holes
论文作者
论文摘要
我们介绍了渐近平坦黑洞溶液中相变的第一个例子。我们按顺序分析了黑洞的热力学特性$ n \ ge 3 $ lovelock重力，宇宙为零。我们发现一种新型的“倒置”燕尾，指示稳定的温度区域，用于原本不稳定的中性黑洞，并且可以在多临界点展示多个这样的稳定阶段。我们还发现，对于带电的黑洞，稳定的吉布斯自由能分支上可以存在普通的燕尾，从而可以进行多个一阶相变，如广告黑洞所见。明确提出了$ n = 5 $的三重点，$ n = 7 $的四倍点。我们研究了Gibbs自由能的变化，因为最低的Lovelock常数是不同的，并与ADS黑洞系统的压力变化进行了比较。
We present the first examples of phase transitions in asymptotically flat black hole solutions. We analyze the thermodynamic properties of black holes in order $N\ge 3$ Lovelock gravity, with zero cosmological constant. We find a new type of "inverted" swallowtail indicative of stable temperature regions for an otherwise unstable neutral black hole, and demonstrate multiple such stable phases can exist and coexist at multi-critical points. We also find that for charged black holes, ordinary swallowtails can exist on the stable Gibbs free energy branch, allowing for multiple first order phase transitions as seen for AdS black holes. A triple point for $N=5$ and a quadruple point for $N=7$ are presented explicitly. We investigate changes in the Gibbs free energy as the lowest order Lovelock constant is varied, and draw comparisons to pressure changes for AdS black hole systems.
