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Abstract:

We show how the quantum-to-classical transition of the cosmological fluctuations produced during inflation can be described by means of the influence functional and the master equation. We split the inflaton field into the system field (long-wavelength modes), and the environment, represented by its own short-wavelength modes. We compute the decoherence times for the system-field modes and compare them with the other time scales of the model. We present the renormalized stochastic Langevin equation for an homogeneous system field and then we analyze the influence of the environment on the power spectrum for some modes in the system. © 2005 The American Physical Society.

Registro:

Documento: Artículo
Título:Decoherence during inflation: The generation of classical inhomogeneities
Autor:Lombardo, F.C.; Nacir, D.L.
Filiación:Departamento de Física Juan José Giambiagi, FCEyN UBA, Pabellón I, 1428 Buenos Aires, Argentina
Año:2005
Volumen:72
Número:6
DOI: http://dx.doi.org/10.1103/PhysRevD.72.063506
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_v72_n6_p_Lombardo

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Citas:

---------- APA ----------
Lombardo, F.C. & Nacir, D.L. (2005) . Decoherence during inflation: The generation of classical inhomogeneities. Physical Review D - Particles, Fields, Gravitation and Cosmology, 72(6).
http://dx.doi.org/10.1103/PhysRevD.72.063506
---------- CHICAGO ----------
Lombardo, F.C., Nacir, D.L. "Decoherence during inflation: The generation of classical inhomogeneities" . Physical Review D - Particles, Fields, Gravitation and Cosmology 72, no. 6 (2005).
http://dx.doi.org/10.1103/PhysRevD.72.063506
---------- MLA ----------
Lombardo, F.C., Nacir, D.L. "Decoherence during inflation: The generation of classical inhomogeneities" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 72, no. 6, 2005.
http://dx.doi.org/10.1103/PhysRevD.72.063506
---------- VANCOUVER ----------
Lombardo, F.C., Nacir, D.L. Decoherence during inflation: The generation of classical inhomogeneities. Phys Rev D Part Fields Gravit Cosmol. 2005;72(6).
http://dx.doi.org/10.1103/PhysRevD.72.063506