CS1 - Cosmic Strings |
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Speaker |
ISHIHARA, Hideki |
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Coauthors |
Takahisa Igata, Masataka Tsuchiya, and Chul-Moon Yoo |
| Talk Title |
Rigidly Rotating Strings in a Kerr Black Hole |
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Abstract |
We investigate rigidly rotating Nambu-Goto strings in a Kerr spacetime. Since such a string world sheet admits a Killing vector, the Nambu-Goto equation of the rigidly rotating string reduces to the geodesic equation on the orbit space defined by the action of isometries generated by the Killing vector. By the analysis of the geodesic equation, we found the following two facts. The first is that the rigidly rotating strings can be trapped in a finite region around the black hole. As a snapshot of the string, chaotic behavior appears in the configuration. The second is that the rigidly rotating string can stick into the horizon only if the energy and angular momentum flows on the sticking string satisfy the 2nd law of the black hole thermodynamics on the horizon. Then, only one end of the string is possible to stick. |
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Talk view |
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