论文标题
四维高斯广告广告的无效测量学和热力学相变
Null Geodesics and Thermodynamic Phase Transition of Four-Dimensional Gauss-Bonnet AdS Black Hole
论文作者
论文摘要
修改的重力理论在观察和理论研究中都引起了人们的极大兴趣。在本文中，我们研究了四维爱因斯坦 - 马克斯维斯 - 高斯 - 高斯河网络黑洞的背景中无效的大地测量学之间的相关性，爱因斯坦重力的修饰以及它的热力学相变。我们使用共存和旋转曲线研究黑洞的相结构，以了解扩展相空间中的相变。在光子轨道半径的行为以及相对于鹰的温度和压力方面，观察到这种相变特征的烙印。相变期间，这两个数量的变化用作秩序参数，表征了临界行为。相关性表明，可以通过观察强引力场的影响，反之亦然来研究热力学相变。
Modified gravity theories are of great interest in both observational and theoretical studies. In this article we study the correlation between the null geodesics in the background of a four-dimensional Einstein-Maxwell-Gauss-Bonnet AdS black hole, a modification of Einstein gravity, and it's thermodynamic phase transition. We study the phase structure of the black hole, using the coexistence and spinodal curves, to understand the phase transition in a extended phase space. The imprints of this phase transition features are observed in the behaviour of photon orbit radius and minimum impact parameter with respect to the Hawking temperature and pressure. The change in these two quantities during the phase transition serve as order parameter which characterises the critical behaviour. The correlation shows that thermodynamic phase transition can be studied by observing the effects of strong gravitational field and vice versa.
