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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Springer
2007
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| Online Access: | http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/1/0610191.pdf |
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nottingham-421162017-10-12T22:35:30Z http://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 application/pdf en http://eprints.nottingham.ac.uk/42116/1/0610191.pdf 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 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
University of Nottingham Malaysia Campus |
| building |
Nottingham Research Data Repository |
| collection |
Online Access |
| language |
English |
| 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. |
| format |
Article |
| author |
Saffin, Paul M. Tranberg, Anders |
| spellingShingle |
Saffin, Paul M. Tranberg, Anders Oscillons and quasi-breathers in D+1 dimensions |
| author_facet |
Saffin, Paul M. Tranberg, Anders |
| author_sort |
Saffin, Paul M. |
| title |
Oscillons and quasi-breathers in D+1 dimensions |
| title_short |
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_sort |
oscillons and quasi-breathers in d+1 dimensions |
| publisher |
Springer |
| publishDate |
2007 |
| url |
http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/ http://eprints.nottingham.ac.uk/42116/1/0610191.pdf |
| first_indexed |
2018-09-06T13:17:49Z |
| last_indexed |
2018-09-06T13:17:49Z |
| _version_ |
1610864257056899072 |