Abstract:
Finite expressions for the mean value of the stress tensor corresponding to a scalar field with a generalized dispersion relation in a Friedmann-Robertson- Walker universe are obtained using adiabatic renormalization. Formally divergent integrals are evaluated by means of dimensional regularization. The renormalization procedure is shown to be equivalent to a redefinition of the cosmological constant and the Newton constant in the semiclassical Einstein equations. © 2005 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Renormalized stress tensor for trans-Planckian cosmology |
Autor: | Nacir, D.L.; Mazzitelli, F.D.; Simeone, C. |
Filiación: | Departamento de Física Juan José Giambiagi, Facultad de Ciencias Exactas Y Naturales, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina
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Año: | 2005
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Volumen: | 72
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Número: | 12
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DOI: |
http://dx.doi.org/10.1103/PhysRevD.72.124013 |
Título revista: | Physical Review D - Particles, Fields, Gravitation and Cosmology
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Título revista abreviado: | Phys Rev D Part Fields Gravit Cosmol
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ISSN: | 15507998
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CODEN: | PRVDA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v72_n12_p_Nacir |
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Citas:
---------- APA ----------
Nacir, D.L., Mazzitelli, F.D. & Simeone, C.
(2005)
. Renormalized stress tensor for trans-Planckian cosmology. Physical Review D - Particles, Fields, Gravitation and Cosmology, 72(12).
http://dx.doi.org/10.1103/PhysRevD.72.124013---------- CHICAGO ----------
Nacir, D.L., Mazzitelli, F.D., Simeone, C.
"Renormalized stress tensor for trans-Planckian cosmology"
. Physical Review D - Particles, Fields, Gravitation and Cosmology 72, no. 12
(2005).
http://dx.doi.org/10.1103/PhysRevD.72.124013---------- MLA ----------
Nacir, D.L., Mazzitelli, F.D., Simeone, C.
"Renormalized stress tensor for trans-Planckian cosmology"
. Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 72, no. 12, 2005.
http://dx.doi.org/10.1103/PhysRevD.72.124013---------- VANCOUVER ----------
Nacir, D.L., Mazzitelli, F.D., Simeone, C. Renormalized stress tensor for trans-Planckian cosmology. Phys Rev D Part Fields Gravit Cosmol. 2005;72(12).
http://dx.doi.org/10.1103/PhysRevD.72.124013