Horizons cannot save the Landscape
Horizons cannot save the Landscape
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地平线无法拯救风景
DOI：
10.1103/physrevd.87.063012
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发表时间：
2012
影响因子：
5
通讯作者：
Ó. J. Dias
中科院分区：
文献类型：
--
作者：
I. Bena;A. Buchel;Ó. J. Dias
带正电荷的Klebanov-Strassler几何中的反d3膜溶液具有一定的奇异性，对应于RR和NS-NS三型通量的能量密度发散。对于这个奇点有很多支持和反对的希望和争论，我们试图通过检查这个奇点是否可以被一个常规的事件视界掩盖来解决这个问题。这相当于存在渐近的k黎巴嫩诺夫- tseytlin或k黎巴嫩诺夫- strassler黑洞，其在视界处测量的电荷与渐近电荷的符号相反。我们发现不存在这样的KT解。此外，对于我们考虑的一大类KS黑洞，视界上的电荷也必须具有与渐近电荷相同的符号，并且完全由温度，分数膜的数量和双规范理论的高规质量决定。我们的结果表明，在通量中有电荷的背景下，反膜奇点是非物理的，这反过来又提出了一个问题，即反膜是否可以用来提升AdS真空到deSitter真空。我们的研究结果还指出了抗膜的一种可能的不稳定性机制。
Solutions with anti-D3 branes in a Klebanov-Strassler geometry with positive charge dissolved in fluxes have a certain singularity corresponding to a diverging energy density of the RR and NS-NS three-form fluxes. There are many hopes and arguments for and against this singularity, and we attempt to settle the issue by examining whether this singularity can be cloaked by a regular event horizon. This is equivalent to the existence of asymptotically Klebanov-Tseytlin or Klebanov-Strassler black holes whose charge measured at the horizon has the opposite sign to the asymptotic charge. We find that no such KT solution exists. Furthermore, for a large class of KS black holes we considered, the charge at the horizon must also have the same sign as the asymptotic charge, and is completely determined by the temperature, the number of fractional branes and the gaugino masses of the dual gauge theory. Our result suggests that antibrane singularities in backgrounds with charge in the fluxes are unphysical, which in turn raises the question as to whether antibranes can be used to uplift AdS vacua to deSitter ones. Our results also point out to a possible instability mechanism for the antibranes.
超越微扰理论的（反）膜反反应
影响因子：
5.4
作者：
J. Blaback;U. H. Danielsson;D. Junghans;T. Van Riet;T. Wrase;M. Zagermann
通讯作者：
M. Zagermann