Lensing effect of a cosmic string in Chern-Simons gravity
| dc.creator | Stedile, Edson | |
| dc.creator | Duarte, Rogerio | |
| dc.date | 1996-08-20 | |
| dc.date.accessioned | 2026-07-07T04:22:24Z | |
| dc.date.available | 2026-07-07T04:22:24Z | |
| dc.description | It is pointed out that any conformally transformed of a flat space-time metric $\ball g_{ij} = f(x)\;η_{ij}$ is a solution to Witten's equation of Chern-Simons gravity, which holds outside matter in (2+1) dimensions. It is also shown that a simultaneous exterior solution to both Witten's and Einstein's equations, yields the lensing effect of an isolated cosmic string, if $f(x)$ is reduced to an arbitrary dimensionless constant. However, the solution to Witten's equation with $f(x)$ being an arbitrary and continuous function of space-time coordinates, also leads to an open circular path for a light ray near the string. | |
| dc.description | 8 pages, no figures, uses RevTEX, contributions to Strings'96 Conference | |
| dc.identifier | https://arxiv.org/abs/hep-th/9608134 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9608134 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/54701 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Lensing effect of a cosmic string in Chern-Simons gravity | |
| dc.type | text |