The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane

The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane

In this paper, vacuum expectation value (VEV) of the energy–momentum tensor for a conformally coupled scalar field in de Sitter space–time is investigated through the Krein–Gupta–Bleuler construction. This construction has already been successfully applied to the de Sitter minimally coupled massless...

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Main Authors: S. Rahbardehghan, H. Pejhan
Format: Article
Language:English
Published: Elsevier 2015-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315007418
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spelling doaj-b62abdfbc2204d018ebc95469db4684e2020-11-24T21:02:06ZengElsevierPhysics Letters B0370-26931873-24452015-11-01750C62763210.1016/j.physletb.2015.09.066The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved braneS. Rahbardehghan0H. Pejhan1Department of Physics, Islamic Azad University, Central Branch, Tehran, IranDepartment of Physics, Science and Research Branch, Islamic Azad University, Tehran, IranIn this paper, vacuum expectation value (VEV) of the energy–momentum tensor for a conformally coupled scalar field in de Sitter space–time is investigated through the Krein–Gupta–Bleuler construction. This construction has already been successfully applied to the de Sitter minimally coupled massless scalar field and massless spin-2 field to obtain a causal and fully covariant quantum field on de Sitter background. We also consider the effects of boundary conditions. In this respect, Casimir energy–momentum tensor induced by Dirichlet boundary condition on a curved brane is evaluated.http://www.sciencedirect.com/science/article/pii/S0370269315007418
collection DOAJ
language English
format Article
sources DOAJ
author S. Rahbardehghan
H. Pejhan
spellingShingle S. Rahbardehghan
H. Pejhan
The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
Physics Letters B
author_facet S. Rahbardehghan
H. Pejhan
author_sort S. Rahbardehghan
title The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
title_short The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
title_full The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
title_fullStr The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
title_full_unstemmed The Krein–Gupta–Bleuler quantization in de Sitter space–time; Casimir energy–momentum tensor for a curved brane
title_sort krein–gupta–bleuler quantization in de sitter space–time; casimir energy–momentum tensor for a curved brane
publisher Elsevier
series Physics Letters B
issn 0370-2693
1873-2445
publishDate 2015-11-01
description In this paper, vacuum expectation value (VEV) of the energy–momentum tensor for a conformally coupled scalar field in de Sitter space–time is investigated through the Krein–Gupta–Bleuler construction. This construction has already been successfully applied to the de Sitter minimally coupled massless scalar field and massless spin-2 field to obtain a causal and fully covariant quantum field on de Sitter background. We also consider the effects of boundary conditions. In this respect, Casimir energy–momentum tensor induced by Dirichlet boundary condition on a curved brane is evaluated.
url http://www.sciencedirect.com/science/article/pii/S0370269315007418
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AT hpejhan thekreinguptableulerquantizationindesitterspacetimecasimirenergymomentumtensorforacurvedbrane
AT srahbardehghan kreinguptableulerquantizationindesitterspacetimecasimirenergymomentumtensorforacurvedbrane
AT hpejhan kreinguptableulerquantizationindesitterspacetimecasimirenergymomentumtensorforacurvedbrane
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