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arXiv 0709.3891hep-th
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用膜和反膜描述旋转多荷黑洞

A Description of Rotating Multicharged Black Holes in terms of Branes and Antibranes

Samrat Bhowmick, S. Kalyana Rama

摘要:

我们把旋转的多电荷黑洞描述为一堆相互交叉的膜和反膜,以及它们上面的无质量气体。假设气体的能量相等,我们发现它们对应于黑洞旋转的角动量参数也相等。该模型的熵S由S = X S_{sg}给出,其中S_{sg}是超引力熵。在违反能量守恒的假设下,可以得到X = 1。我们证明,如果假设只有一种气体,这是上述气体的某种叠加,并且膜张力减少了四分之一,也可以得到X = 1。在这种解释中,能量是守恒的,气体的能量而不是温度相等的不寻常假设变得多余。

英文摘要:

We describe rotating multicharge black holes as stacks of intersecting branes and antibranes together with massless gases on them. Assuming the energies of the gases to be equal, we find that their angular momentum parameters, corresponding to black hole rotations, are also equal. The entropy S of this model is given by S = X S_{sg} where S_{sg} is the supergravity entropy. One can obtain X = 1 under an assumption which violates conservation of energy. We show that X = 1 can also be obtained if one assumes that there is only one single gas, which is some sort of superposition of the gases mentioned above, and that the brane tensions are reduced by a factor of four. In this interpretation, energy is conserved and the unusual assumption that energies, not temperatures, of the gases are equal becomes superfluous.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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