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Abstract:

We consider the eternal inflation scenario of the slow-roll/chaotic type with the additional element of an objective collapse of the wave function. The incorporation of this new agent to the traditional inflationary setting might represent a possible solution to the quantum measurement problem during inflation, a subject that has not reached a consensus among the community. Specifically, it could provide an explanation for the generation of the primordial anisotropies and inhomogeneities, starting from a perfectly symmetric background and invoking symmetric dynamics. We adopt the continuous spontaneous localization model, in the context of inflation, as the dynamical reduction mechanism that generates the primordial inhomogeneities. Furthermore, when enforcing the objective reduction mechanism, the condition for eternal inflation can be bypassed. In particular, the collapse mechanism incites the wave function, corresponding to the inflaton, to localize itself around the zero mode of the field. Then the zero mode will evolve essentially unperturbed, driving inflation to an end in any region of the Universe where inflation occurred. Also, our approach achieves a primordial spectrum with an amplitude and shape consistent with the one that best fits the observational data. © 2017, The Author(s).

Registro:

Documento: Artículo
Título:Eternal inflation and the quantum birth of cosmic structure
Autor:León, G.
Filiación:Grupo de Astrofísica, Relatividad y Cosmología, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque S/N, La Plata, 1900, Argentina
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria-Pab. I, Buenos Aires, 1428, Argentina
Año:2017
Volumen:77
Número:10
DOI: http://dx.doi.org/10.1140/epjc/s10052-017-5288-5
Título revista:European Physical Journal C
Título revista abreviado:Eur. Phys. J. C
ISSN:14346044
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v77_n10_p_Leon

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Citas:

---------- APA ----------
(2017) . Eternal inflation and the quantum birth of cosmic structure. European Physical Journal C, 77(10).
http://dx.doi.org/10.1140/epjc/s10052-017-5288-5
---------- CHICAGO ----------
León, G. "Eternal inflation and the quantum birth of cosmic structure" . European Physical Journal C 77, no. 10 (2017).
http://dx.doi.org/10.1140/epjc/s10052-017-5288-5
---------- MLA ----------
León, G. "Eternal inflation and the quantum birth of cosmic structure" . European Physical Journal C, vol. 77, no. 10, 2017.
http://dx.doi.org/10.1140/epjc/s10052-017-5288-5
---------- VANCOUVER ----------
León, G. Eternal inflation and the quantum birth of cosmic structure. Eur. Phys. J. C. 2017;77(10).
http://dx.doi.org/10.1140/epjc/s10052-017-5288-5