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26 April 2024 |
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Quantum Ergoregion Instability | | Gungwon Kang
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9 May 1997 | | Subject: | gr-qc | | Abstract: | We have shown that, as in the case of black holes, an ergosphere itself with no event horizon inside can evaporate spontaneously, giving energy radiation to spatial infinity until the ergoregion disappears. However, the feature of his quantum ergoregion instability is very much different from black hole radiation. It is rather analogous to a laser amplification. This analysis is based on the canonical quantization of a neutral scalar field in the presence of unstable modes characterized by complex frequencies in a simple model for a rapidly rotating star. | | Source: | arXiv, gr-qc/9705015 | | Services: | Forum | Review | PDF | Favorites | |
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