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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.22120 |
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| _version_ | 1866908481281327104 |
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| author | Horowitz, Gary T. Lu, Guanyu |
| author_facet | Horowitz, Gary T. Lu, Guanyu |
| contents | We show that the ADM energy of a Kaluza-Klein bubble of nothing is unbounded from below even if the size of the circle at infinity and the size of the minimal sphere at the bubble are fixed. We demonstrate this by presenting a family of explicit time-symmetric initial data satisfying these boundary conditions with arbitrarily negative energy. In particular, this is true for very small bubbles, which indicates that the standard Kaluza-Klein vacuum is more unstable than previously thought. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_22120 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Arbitrarily Negative Energy for Small Kaluza-Klein Bubbles Horowitz, Gary T. Lu, Guanyu High Energy Physics - Theory General Relativity and Quantum Cosmology We show that the ADM energy of a Kaluza-Klein bubble of nothing is unbounded from below even if the size of the circle at infinity and the size of the minimal sphere at the bubble are fixed. We demonstrate this by presenting a family of explicit time-symmetric initial data satisfying these boundary conditions with arbitrarily negative energy. In particular, this is true for very small bubbles, which indicates that the standard Kaluza-Klein vacuum is more unstable than previously thought. |
| title | Arbitrarily Negative Energy for Small Kaluza-Klein Bubbles |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2507.22120 |