Causal structures and dynamics of black-hole-like solutions in string theory
Abstract We investigate spherically symmetric solutions in string theory. Such solutions depend on three parameters, one of which corresponds to the asymptotic mass while the other two are the dilaton and two-form field amplitudes, respectively. If the two-form field amplitude is non-vanishing, then...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7435-7 |
| _version_ | 1819209571551412224 |
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| author | Subeom Kang Dong-han Yeom |
| author_facet | Subeom Kang Dong-han Yeom |
| author_sort | Subeom Kang |
| collection | DOAJ |
| description | Abstract We investigate spherically symmetric solutions in string theory. Such solutions depend on three parameters, one of which corresponds to the asymptotic mass while the other two are the dilaton and two-form field amplitudes, respectively. If the two-form field amplitude is non-vanishing, then this solution represents a trajectory of a singular and null hypersurface. If the dilaton and two-form field amplitudes are non-vanishing but very close to zero, then the solution is asymptotically the same as the Schwarzschild solution, while only the near horizon geometry will be radically changed. If the dilaton field diverges toward the weak coupling regime, this demonstrates a firewall-like solution. If the dilaton field diverges toward the strong coupling limit, then as we consider quantum effects, this spacetime will emit too strong Hawking radiation to preserve semi-classical spacetime. However, if one considers a junction between the solution and the flat spacetime interior, this can allow a stable star-like solution with reasonable semi-classical properties. We discuss possible implications of these causal structures and connections with the information loss problem. |
| first_indexed | 2024-12-23T05:57:24Z |
| format | Article |
| id | doaj.art-bacfb89e769a41fe8a7a04d79ad79f31 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-23T05:57:24Z |
| publishDate | 2019-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-bacfb89e769a41fe8a7a04d79ad79f312022-12-21T17:57:46ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-11-01791111110.1140/epjc/s10052-019-7435-7Causal structures and dynamics of black-hole-like solutions in string theorySubeom Kang0Dong-han Yeom1Department of Physics, KAISTAsia Pacific Center for Theoretical PhysicsAbstract We investigate spherically symmetric solutions in string theory. Such solutions depend on three parameters, one of which corresponds to the asymptotic mass while the other two are the dilaton and two-form field amplitudes, respectively. If the two-form field amplitude is non-vanishing, then this solution represents a trajectory of a singular and null hypersurface. If the dilaton and two-form field amplitudes are non-vanishing but very close to zero, then the solution is asymptotically the same as the Schwarzschild solution, while only the near horizon geometry will be radically changed. If the dilaton field diverges toward the weak coupling regime, this demonstrates a firewall-like solution. If the dilaton field diverges toward the strong coupling limit, then as we consider quantum effects, this spacetime will emit too strong Hawking radiation to preserve semi-classical spacetime. However, if one considers a junction between the solution and the flat spacetime interior, this can allow a stable star-like solution with reasonable semi-classical properties. We discuss possible implications of these causal structures and connections with the information loss problem.http://link.springer.com/article/10.1140/epjc/s10052-019-7435-7 |
| spellingShingle | Subeom Kang Dong-han Yeom Causal structures and dynamics of black-hole-like solutions in string theory European Physical Journal C: Particles and Fields |
| title | Causal structures and dynamics of black-hole-like solutions in string theory |
| title_full | Causal structures and dynamics of black-hole-like solutions in string theory |
| title_fullStr | Causal structures and dynamics of black-hole-like solutions in string theory |
| title_full_unstemmed | Causal structures and dynamics of black-hole-like solutions in string theory |
| title_short | Causal structures and dynamics of black-hole-like solutions in string theory |
| title_sort | causal structures and dynamics of black hole like solutions in string theory |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7435-7 |
| work_keys_str_mv | AT subeomkang causalstructuresanddynamicsofblackholelikesolutionsinstringtheory AT donghanyeom causalstructuresanddynamicsofblackholelikesolutionsinstringtheory |