球形磁单极荷电黑洞的Hawking辐射(英文)

利用Ham liton-Jacobi方法,考虑自引力作用及能量和电荷守恒研究了球形磁单极荷电黑洞的隧穿辐射特性,得到的隧穿辐射谱不再是纯热谱,其隧穿几率与Hawking熵有关,所得到结果满足幺正性原理且对Hawking辐射进行了修正.

全息框架下带有整体磁单极电荷的AdS时空的范德瓦尔斯相变

近年来,带有整体磁单极的黑洞引起了人们广泛的关注。同时,人们对带有整体磁单极的黑洞的相结构也有了深入的研究。其中,两点关联函数就是研究黑洞相变结构的有利的工具之一。在本文中,不仅利用黑洞熵,还利用了两点关联函数来探讨带有整体磁单极电荷的黑洞的相变行为。而且在对应的平面内可以观察到和普通热力学液气流体完全相类似的范德瓦尔斯相变。在T-δL平面中也考虑了磁单极参数对黑洞相变行为的影响,在对应的平面中显示的结果仍然呈现与普通热力学液—气流体相类似的范德瓦尔斯相变。研究结果表明,在全息框架下,带有磁单极电荷的AdS时空中黑洞展示出与黑洞热力学熵相类似的范德瓦尔斯相变。

Quantum Entropy of Black Hole with Internal Global Monopole

Using the generalized uncertainty relation, the new equation of state density is obtained, and then the entropy of black hole with an internal global monopole is discussed. The divergence that appears in black hole entropy calculation through original brick-wall model is overcome. The result of the direct proportion between black hole entropy and its event horizon area is drawn and given. The result shows that the black hole entropy must be the entropy of quantum state near the event horizon.