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Abstract:

In this paper, we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two states corresponding to different CBR temperatures. Such observations are sensitive to scalar primordial fluctuations but insensitive to tensor fluctuations, which are therefore converted into an environment for the former. Even for a free inflaton field minimally coupled to gravity, scalar-tensor interactions induce enough decoherence among histories of the scalar fluctuations as to render them classical under any realistic probe of their amplitudes. © 2011 IOP Publishing Ltd.

Registro:

Documento: Artículo
Título:Decoherence in the cosmic background radiation
Autor:Franco, M.; Calzetta, E.
Filiación:Physics Department, Buenos Aires University, Ciudad Universitaria, Pabellón I, Buenos Aires 1428, Argentina
IFIBA-CONICET, Pabellón I, Buenos Aires 1428, Argentina
Año:2011
Volumen:28
Número:14
DOI: http://dx.doi.org/10.1088/0264-9381/28/14/145024
Título revista:Classical and Quantum Gravity
Título revista abreviado:Classical Quantum Gravity
ISSN:02649381
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v28_n14_p_Franco

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Citas:

---------- APA ----------
Franco, M. & Calzetta, E. (2011) . Decoherence in the cosmic background radiation. Classical and Quantum Gravity, 28(14).
http://dx.doi.org/10.1088/0264-9381/28/14/145024
---------- CHICAGO ----------
Franco, M., Calzetta, E. "Decoherence in the cosmic background radiation" . Classical and Quantum Gravity 28, no. 14 (2011).
http://dx.doi.org/10.1088/0264-9381/28/14/145024
---------- MLA ----------
Franco, M., Calzetta, E. "Decoherence in the cosmic background radiation" . Classical and Quantum Gravity, vol. 28, no. 14, 2011.
http://dx.doi.org/10.1088/0264-9381/28/14/145024
---------- VANCOUVER ----------
Franco, M., Calzetta, E. Decoherence in the cosmic background radiation. Classical Quantum Gravity. 2011;28(14).
http://dx.doi.org/10.1088/0264-9381/28/14/145024