Lim Yen-Kheng
Department of Physics, Xiamen University Malaysia, Sepang 43900, Malaysia.
Entropy (Basel). 2021 Nov 8;23(11):1477. doi: 10.3390/e23111477.
In this paper we explore a solenoid configuration involving a magnetic universe solution embedded in an empty Anti-de Sitter (AdS) spacetime. This requires a non-trivial surface current at the interface between the two spacetimes, which can be provided by a charged scalar field. When the interface is taken to the AdS boundary, we recover the full AdS-Melvin spacetime. The stability of the AdS-Melvin solution is also studied by computing the gravitational free energy from the Euclidean action.
在本文中,我们探讨了一种螺线管构型,它涉及嵌入在空的反德西特(AdS)时空中的磁宇宙解。这需要在两个时空的界面处有一个非平凡的表面电流,这可以由一个带电标量场提供。当界面取为AdS边界时,我们得到了完整的AdS - 梅尔文时空。还通过从欧几里得作用量计算引力自由能来研究AdS - 梅尔文解的稳定性。