Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background
Abstract Energy momentum tensor of a conformally coupled quantum scalar field in five dimensional warped cosmological spacetimes is studied. We look at situations where the four dimensional part represents a cosmological thick brane and the scale of the extra dimension is time dependent. Renormaliza...
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2019-03-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-6760-1 |
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doaj-f23586fb9e094f81814f1407572b8be52020-11-25T02:28:12ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-03-017931910.1140/epjc/s10052-019-6760-1Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld backgroundSuman Ghosh0Department of Physics, Indira Gandhi National Tribal UniversityAbstract Energy momentum tensor of a conformally coupled quantum scalar field in five dimensional warped cosmological spacetimes is studied. We look at situations where the four dimensional part represents a cosmological thick brane and the scale of the extra dimension is time dependent. Renormalization of the components of the energy momentum tensor is achieved using adiabatic regularization method. The resulting energy and pressure densities explicitly show the effects of warping and the dynamic extra dimension on the created matter. We discussed how the created matter may accumulate to form thick branes along the extra dimension.http://link.springer.com/article/10.1140/epjc/s10052-019-6760-1 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Suman Ghosh |
| spellingShingle |
Suman Ghosh Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background European Physical Journal C: Particles and Fields |
| author_facet |
Suman Ghosh |
| author_sort |
Suman Ghosh |
| title |
Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| title_short |
Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| title_full |
Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| title_fullStr |
Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| title_full_unstemmed |
Renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| title_sort |
renormalized stress tensor of a quantized massless scalar field in warped cosmological braneworld background |
| publisher |
SpringerOpen |
| series |
European Physical Journal C: Particles and Fields |
| issn |
1434-6044 1434-6052 |
| publishDate |
2019-03-01 |
| description |
Abstract Energy momentum tensor of a conformally coupled quantum scalar field in five dimensional warped cosmological spacetimes is studied. We look at situations where the four dimensional part represents a cosmological thick brane and the scale of the extra dimension is time dependent. Renormalization of the components of the energy momentum tensor is achieved using adiabatic regularization method. The resulting energy and pressure densities explicitly show the effects of warping and the dynamic extra dimension on the created matter. We discussed how the created matter may accumulate to form thick branes along the extra dimension. |
| url |
http://link.springer.com/article/10.1140/epjc/s10052-019-6760-1 |
| work_keys_str_mv |
AT sumanghosh renormalizedstresstensorofaquantizedmasslessscalarfieldinwarpedcosmologicalbraneworldbackground |
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1724839746952232960 |