Universität zu Köln

Calcagni, Gianluca ORCID: 0000-0003-2631-4588, Kiefer, Claus ORCID: 0000-0001-6163-9519 and Steinwachs, Christian F. (2014). Quantum cosmological consistency condition for inflation. J. Cosmol. Astropart. Phys. (10). BRISTOL: IOP PUBLISHING LTD. ISSN 1475-7516

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Abstract

We investigate the quantum cosmological tunneling scenario for inflationary models. Within a path-integral approach, we derive the corresponding tunneling probability distribution. A sharp peak in this distribution can be interpreted as the initial condition for inflation and therefore as a quantum cosmological prediction for its energy scale. This energy scale is also a genuine prediction of any inflationary model by itself, as the primordial gravitons generated during inflation leave their imprint in the B-polarization of the cosmic microwave background. In this way, one can derive a consistency condition for inflationary models that guarantees compatibility with a tunneling origin and can lead to a testable quantum cosmological prediction. The general method is demonstrated explicitly for the model of natural inflation.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Calcagni, Gianluca UNSPECIFIED orcid.org/0000-0003-2631-4588 UNSPECIFIED Kiefer, Claus UNSPECIFIED orcid.org/0000-0001-6163-9519 UNSPECIFIED Steinwachs, Christian F. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-426302
DOI:	10.1088/1475-7516/2014/10/026
Journal or Publication Title:	J. Cosmol. Astropart. Phys.
Number:	10
Date:	2014
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1475-7516
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MODEL HIGGS-BOSON; CREATION; ORIGIN; PERTURBATIONS; FLUCTUATIONS; RENORMALIZATION; DECOHERENCE; GENERATION; UNIVERSE; SCALE Multiple languages Astronomy & Astrophysics; Physics, Particles & Fields Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/42630