Oscillons and quasi-breathers in D+1 dimensions
We study oscillons in D+1 space-time dimensions using a spherically symmetric ansatz. From Gaussian initial conditions, these evolve by emitting radiation, approaching ``quasi-breathers'', near-periodic solutions to the equations of motion. Using a truncated mode expansion, we numerically...
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| Format: | Article |
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Springer
2007
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| Online Access: | https://eprints.nottingham.ac.uk/42116/ |
| _version_ | 1848796423032668160 |
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| author | Saffin, Paul M. Tranberg, Anders |
| author_facet | Saffin, Paul M. Tranberg, Anders |
| author_sort | Saffin, Paul M. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We study oscillons in D+1 space-time dimensions using a spherically symmetric ansatz. From Gaussian initial conditions, these evolve by emitting radiation, approaching ``quasi-breathers'', near-periodic solutions to the equations of motion. Using a truncated mode expansion, we numerically determine these quasi-breather solutions in 2<D<6 and the energy dependence on the oscillation frequency. In particular, this energy has a minimum, which in turn depends on the number of spatial dimensions. We study the time evolution and lifetimes of the resulting quasi-breathers, and show how generic oscillons decay into these before disappearing altogether. We comment on the apparent absence of oscillons for D>5 and the possibility of stable solutions for D<2. |
| first_indexed | 2025-11-14T19:47:44Z |
| format | Article |
| id | nottingham-42116 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:47:44Z |
| publishDate | 2007 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-421162024-08-15T15:13:20Z https://eprints.nottingham.ac.uk/42116/ Oscillons and quasi-breathers in D+1 dimensions Saffin, Paul M. Tranberg, Anders We study oscillons in D+1 space-time dimensions using a spherically symmetric ansatz. From Gaussian initial conditions, these evolve by emitting radiation, approaching ``quasi-breathers'', near-periodic solutions to the equations of motion. Using a truncated mode expansion, we numerically determine these quasi-breather solutions in 2<D<6 and the energy dependence on the oscillation frequency. In particular, this energy has a minimum, which in turn depends on the number of spatial dimensions. We study the time evolution and lifetimes of the resulting quasi-breathers, and show how generic oscillons decay into these before disappearing altogether. We comment on the apparent absence of oscillons for D>5 and the possibility of stable solutions for D<2. Springer 2007-01-04 Article PeerReviewed Saffin, Paul M. and Tranberg, Anders (2007) Oscillons and quasi-breathers in D+1 dimensions. Journal of High Energy Physics, 2007 (01). 030. ISSN 1029-8479 http://iopscience.iop.org/article/10.1088/1126-6708/2007/01/030/meta doi:10.1088/1126-6708/2007/01/030 doi:10.1088/1126-6708/2007/01/030 |
| spellingShingle | Saffin, Paul M. Tranberg, Anders Oscillons and quasi-breathers in D+1 dimensions |
| title | Oscillons and quasi-breathers in D+1 dimensions |
| title_full | Oscillons and quasi-breathers in D+1 dimensions |
| title_fullStr | Oscillons and quasi-breathers in D+1 dimensions |
| title_full_unstemmed | Oscillons and quasi-breathers in D+1 dimensions |
| title_short | Oscillons and quasi-breathers in D+1 dimensions |
| title_sort | oscillons and quasi-breathers in d+1 dimensions |
| url | https://eprints.nottingham.ac.uk/42116/ https://eprints.nottingham.ac.uk/42116/ https://eprints.nottingham.ac.uk/42116/ |