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Abstract:

We generalize the consistency condition for the three-point function in single field inflation to the case of dissipative, multi-field, single-clock models. We use the recently introduced extension of the effective field theory of inflation that accounts for dissipative effects, to provide an explicit proof to leading (non-trivial) order in the generalized slow roll parameters and mixing with gravity scales. Our results illustrate the conditions necessary for the validity of the consistency relation in situations with many degrees of freedom relevant during inflation, namely that there is a preferred clock. Departures from this condition in forthcoming experiments would rule out not only single field but also a large class of multifield models. © 2012 IOP Publishing Ltd and Sissa Medialab srl.

Registro:

Documento: Artículo
Título:The consistency condition for the three-point function in dissipative single-clock inflation
Autor:Nacir, D.L.; Porto, R.A.; Zaldarriaga, M.
Filiación:Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, CONICET, Pabellón 1, 1428, Buenos Aires, Argentina
School of Natural Sciences, Institute for Advanced Study, Einstein Drive, Princeton, NJ 08540, United States
Department of Physics, ISCAP, Columbia University, New York, NY 10027, United States
Palabras clave:Inflation; Non-gaussianity; Physics of the early universe
Año:2012
Volumen:2012
Número:9
DOI: http://dx.doi.org/10.1088/1475-7516/2012/09/004
Título revista:Journal of Cosmology and Astroparticle Physics
Título revista abreviado:J. Cosmol. Astroparticle Phys.
ISSN:14757516
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14757516_v2012_n9_p_Nacir

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Citas:

---------- APA ----------
Nacir, D.L., Porto, R.A. & Zaldarriaga, M. (2012) . The consistency condition for the three-point function in dissipative single-clock inflation. Journal of Cosmology and Astroparticle Physics, 2012(9).
http://dx.doi.org/10.1088/1475-7516/2012/09/004
---------- CHICAGO ----------
Nacir, D.L., Porto, R.A., Zaldarriaga, M. "The consistency condition for the three-point function in dissipative single-clock inflation" . Journal of Cosmology and Astroparticle Physics 2012, no. 9 (2012).
http://dx.doi.org/10.1088/1475-7516/2012/09/004
---------- MLA ----------
Nacir, D.L., Porto, R.A., Zaldarriaga, M. "The consistency condition for the three-point function in dissipative single-clock inflation" . Journal of Cosmology and Astroparticle Physics, vol. 2012, no. 9, 2012.
http://dx.doi.org/10.1088/1475-7516/2012/09/004
---------- VANCOUVER ----------
Nacir, D.L., Porto, R.A., Zaldarriaga, M. The consistency condition for the three-point function in dissipative single-clock inflation. J. Cosmol. Astroparticle Phys. 2012;2012(9).
http://dx.doi.org/10.1088/1475-7516/2012/09/004