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Creminelli, P.; López Nacir, D.; Simonović, M.; Trevisan, G.; Zaldarriaga, M. "φ2 or not φ2: Testing the simplest inflationary potential" (2014) Physical Review Letters. 112(24)
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Abstract:

The simplest inflationary model V=12m2φ2 represents the benchmark for future constraints. For a quadratic potential, the quantity (ns-1)+r/4+11(ns-1) 2/24 vanishes (up to corrections which are cubic in slow roll) and can be used to parametrize small deviations from the minimal scenario. Future constraints on this quantity will be able to distinguish a quadratic potential from a pseudo-Nambu-Goldstone boson with f30Mpl and set limits on the deviation from unity of the speed of sound |cs-1|3×10-2 (corresponding to an energy scale Λ2×1016GeV) and on the contribution of a second field to perturbations (6×10-2). The limiting factor for these bounds will be the uncertainty on the spectral index. The error on the number of e-folds will be ΔN≃0.4, corresponding to an error on the reheating temperature ΔTrh/Trh≃1.2. We comment on the relevance of non-Gaussianity after BICEP2 results. © 2014 American Physical Society.

Registro:

Documento: Artículo
Título:φ2 or not φ2: Testing the simplest inflationary potential
Autor:Creminelli, P.; López Nacir, D.; Simonović, M.; Trevisan, G.; Zaldarriaga, M.
Filiación:Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
Institute for Advanced Study, Princeton, NJ 08540, United States
Departamento de Física and IFIBA, FCEyN UBA, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina
SISSA, via Bonomea 265, 34136 Trieste, Italy
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, I-34136 Trieste, Italy
Palabras clave:Atomic physics; Energy scale; Nongaussianity; Reheating temperature; Spectral indices; Physics
Año:2014
Volumen:112
Número:24
DOI: http://dx.doi.org/10.1103/PhysRevLett.112.241303
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v112_n24_p_Creminelli

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Citas:

---------- APA ----------
Creminelli, P., López Nacir, D., Simonović, M., Trevisan, G. & Zaldarriaga, M. (2014) . φ2 or not φ2: Testing the simplest inflationary potential. Physical Review Letters, 112(24).
http://dx.doi.org/10.1103/PhysRevLett.112.241303
---------- CHICAGO ----------
Creminelli, P., López Nacir, D., Simonović, M., Trevisan, G., Zaldarriaga, M. "φ2 or not φ2: Testing the simplest inflationary potential" . Physical Review Letters 112, no. 24 (2014).
http://dx.doi.org/10.1103/PhysRevLett.112.241303
---------- MLA ----------
Creminelli, P., López Nacir, D., Simonović, M., Trevisan, G., Zaldarriaga, M. "φ2 or not φ2: Testing the simplest inflationary potential" . Physical Review Letters, vol. 112, no. 24, 2014.
http://dx.doi.org/10.1103/PhysRevLett.112.241303
---------- VANCOUVER ----------
Creminelli, P., López Nacir, D., Simonović, M., Trevisan, G., Zaldarriaga, M. φ2 or not φ2: Testing the simplest inflationary potential. Phys Rev Lett. 2014;112(24).
http://dx.doi.org/10.1103/PhysRevLett.112.241303