AdS bubbles, entropy and closed string tachyons
AdS bubbles, entropy and closed string tachyons
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DOI：
10.1088/1126-6708/2007/01/090
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发表时间：
2006-11
影响因子：
5.4
通讯作者：
T. Nishioka;T. Takayanagi
中科院分区：
文献类型：
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作者：
T. Nishioka;T. Takayanagi
本文研究了AdS泡（AdS孤子）与闭弦快子凝聚之间的联系。我们证实，纠缠熵，衡量自由度，减少快子凝聚下。超引力熵与自由杨-米尔斯熵之间存在着显著的一致性。接下来，我们考虑快子凝聚的AdS扭曲的圆，并认为它的端点是由扭曲的AdS泡，定义的旋转黑3-膜解决方案的双芯旋转。我们计算了卡西米尔能量和熵，并检查了规范结果与重力结果之间的一致性。最后，我们展示了一个无限的推进零线性的快子理论与快子壁（或气泡），导致一个可解的时间相关的背景与散装快子凝聚。这是弦理论中具有零边界的时空的最简单例子。
We study the conjectured connection between AdS bubbles (AdS solitons) and closed string tachyon condensations. We confirm that the entanglement entropy, which measures the degree of freedom, decreases under the tachyon condensation. The entropies in supergravity and free Yang-Mills agree with each other remarkably. Next we consider the tachyon condensation on the AdS twisted circle and argue that its endpoint is given by the twisted AdS bubble, defined by the double Wick rotation of rotating black 3-brane solutions. We calculated the Casimir energy and entropy and checked the agreements between the gauge and gravity results. Finally we show an infinite boost of a null linear dilaton theory with a tachyon wall (or bubble), leads to a solvable time-dependent background with a bulk tachyon condensation. This is the simplest example of spacetimes with null boundaries in string theory.