Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory
Abstract We add an S 1 extra dimension (size L) to the well known D = 4 static, spherically symmetric Q-balls and boson stars. We show that the resulting uniform horizonless boson strings possess a static zero-mode for a critical value of L. This is at the threshold of a Gregory-Laflamme instability...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-08-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP08(2025)049 |
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| author | C. Herdeiro E. Radu |
| author_facet | C. Herdeiro E. Radu |
| author_sort | C. Herdeiro |
| collection | DOAJ |
| description | Abstract We add an S 1 extra dimension (size L) to the well known D = 4 static, spherically symmetric Q-balls and boson stars. We show that the resulting uniform horizonless boson strings possess a static zero-mode for a critical value of L. This is at the threshold of a Gregory-Laflamme instability of these objects, occurring for larger values of L. The non-linear continuation of the zero-mode yields D = 5 non-uniform boson strings. In addition, there are also intrinsic D = 5 solutions describing localized boson stars on the S 1, supported by the contribution of the scalar field Kaluza-Klein modes. Basic properties of all three types of aforementioned solutions are discussed, together with their phase space. |
| format | Article |
| id | doaj-art-3ada5e18dc824d97aa292f3d288c55da |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-3ada5e18dc824d97aa292f3d288c55da2025-08-20T04:01:42ZengSpringerOpenJournal of High Energy Physics1029-84792025-08-012025812610.1007/JHEP08(2025)049Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theoryC. Herdeiro0E. Radu1Departamento de Matemática, Universidade de AveiroDepartamento de Matemática, Universidade de AveiroAbstract We add an S 1 extra dimension (size L) to the well known D = 4 static, spherically symmetric Q-balls and boson stars. We show that the resulting uniform horizonless boson strings possess a static zero-mode for a critical value of L. This is at the threshold of a Gregory-Laflamme instability of these objects, occurring for larger values of L. The non-linear continuation of the zero-mode yields D = 5 non-uniform boson strings. In addition, there are also intrinsic D = 5 solutions describing localized boson stars on the S 1, supported by the contribution of the scalar field Kaluza-Klein modes. Basic properties of all three types of aforementioned solutions are discussed, together with their phase space.https://doi.org/10.1007/JHEP08(2025)049Classical Theories of GravityField Theories in Higher Dimensions |
| spellingShingle | C. Herdeiro E. Radu Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory Journal of High Energy Physics Classical Theories of Gravity Field Theories in Higher Dimensions |
| title | Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory |
| title_full | Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory |
| title_fullStr | Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory |
| title_full_unstemmed | Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory |
| title_short | Gregory-Laflamme-type instability of boson strings and related phases in D = 5 Kaluza-Klein theory |
| title_sort | gregory laflamme type instability of boson strings and related phases in d 5 kaluza klein theory |
| topic | Classical Theories of Gravity Field Theories in Higher Dimensions |
| url | https://doi.org/10.1007/JHEP08(2025)049 |
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