New instability of non-extremal black holes: spitting out supertubes

作者：Chowdhury Borun D^*; Vercnocke Bert

来源：The Journal of High Energy Physics, 2012, 2012(2): 116.

DOI：10.1007/JHEP02(2012)116

• Black Holes in String Theory
• AdS-CFT Correspondence
• Black Holes

We search for stable bound states of non-extremal rotating three-charge black holes in five dimensions (Cvetic-Youm black holes) and supertubes. We do this by studying the potential of supertube probes in the non-extremal black hole background and find that generically the marginally bound state of the supersymmetric limit becomes metastable and disappears with non-extremality (higher temperature). However near extremality there is a range of parameters allowing for stable bound states, which have lower energy than the supertube-black hole merger. Angular momentum is crucial for this effect. We use this setup in the D1-D5 decoupling limit to map a thermodynamic instability of the CFT (a new phase which is entropically dominant over the black hole phase) to a tunneling instability of the black hole towards the supertube-black hole bound state. This generalizes the results of [1], which mapped an entropy enigma in the bulk to the dual CFT in a supersymmetric setup.

• 出版日期2012-2
• 单位中国地震局