The thin string limit of Cosmic Strings coupled to gravity
| dc.creator | Sjodin, K R P | |
| dc.creator | Vickers, J A | |
| dc.date | 2001-08-02 | |
| dc.date.accessioned | 2026-07-07T03:26:14Z | |
| dc.date.available | 2026-07-07T03:26:14Z | |
| dc.description | The thin string limit of Cosmic Strings is investigated using a description in terms of Colombeau's theory of nonlinear generalised functions. It is shown that in this description the energy-momentum tensor has a well defined thin string limit. Furthermore the deficit angle of the conical spacetime that one obtains in the limit may be given in terms of the distributional energy-momentum tensor. On the other hand it is only in the special case of critical coupling that the energy-momentum tensor defined in the Colombeau algebra is associated to a conventional distribution. The asymptotics of both the matter and gravitational field are investigated in the thin string limit and it is shown how this leads to the `conical approximation' which is valid outside the inner core of the string. | |
| dc.description | 29 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0108009 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0108009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/33967 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | The thin string limit of Cosmic Strings coupled to gravity | |
| dc.type | text |