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Abstract:

We consider the semiclassical Einstein equations (SEE) in the presence of a quantum scalar field with self-interaction λφ4. Working in the Hartree truncation of the two-particle irreducible effective action, we compute the vacuum expectation value of the energy-momentum tensor of the scalar field, which acts as a source of the SEE. We obtain the renormalized SEE by implementing a consistent renormalization procedure. We apply our results to find self-consistent de Sitter solutions to the SEE in situations with or without spontaneous breaking of the Z2-symmetry. © 2014 American Physical Society.

Registro:

Documento: Artículo
Título:Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
Autor:López Nacir, D.L.; Mazzitelli, F.D.; Trombetta, L.G.
Filiación:Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
Departamento de Física and IFIBA, FCEyN UBA, Ciudad Universitaria, Pabellón i, 1428 Buenos Aires, Argentina
Centro Atómico Bariloche Comisión Nacional de Energía Atómica, R8402AGP Bariloche, Argentina
Año:2014
Volumen:89
Número:8
DOI: http://dx.doi.org/10.1103/PhysRevD.89.084013
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v89_n8_p_LopezNacir

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Citas:

---------- APA ----------
López Nacir, D.L., Mazzitelli, F.D. & Trombetta, L.G. (2014) . Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(8).
http://dx.doi.org/10.1103/PhysRevD.89.084013
---------- CHICAGO ----------
López Nacir, D.L., Mazzitelli, F.D., Trombetta, L.G. "Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions" . Physical Review D - Particles, Fields, Gravitation and Cosmology 89, no. 8 (2014).
http://dx.doi.org/10.1103/PhysRevD.89.084013
---------- MLA ----------
López Nacir, D.L., Mazzitelli, F.D., Trombetta, L.G. "Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 89, no. 8, 2014.
http://dx.doi.org/10.1103/PhysRevD.89.084013
---------- VANCOUVER ----------
López Nacir, D.L., Mazzitelli, F.D., Trombetta, L.G. Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions. Phys Rev D Part Fields Gravit Cosmol. 2014;89(8).
http://dx.doi.org/10.1103/PhysRevD.89.084013