New shapes of primordial nonGaussianity from quasisingle field inflation with multiple isocurvatons
Abstract
Here, we study a simple extension of quasisingle field inflation in which the inflaton interacts with multiple extra massive scalars known as isocurvatons. Due to the breaking of time translational invariance by the inflaton background, the theory includes kinetic mixings among the inflaton and isocurvatons. These mixings give rise to novel new features in the primordial nonGaussianities of the scalar curvature perturbation. A noteworthy feature is that the amplitude of the squeezed bispectrum can grow nearly as $({k}_{s}/{k}_{l}{)}^{3}$ while oscillating as $\mathrm{cos}\gamma \mathrm{log}({k}_{s}/{k}_{l})$, where ${k}_{s}/{k}_{l}$ is the ratio of the lengths of the short and long wave vectors. Observation of such a shape would provide evidence for the existence of multiple isocurvatons during inflation. Furthermore, we consider the effects of these nonGaussianities on largescale structure.
 Authors:

 California Inst. of Technology (CalTech), Pasadena, CA (United States). Walter Burke Inst. for Theoretical Physics
 Publication Date:
 Research Org.:
 California Institute of Technology (CalTech), Pasadena, CA (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP)
 OSTI Identifier:
 1599365
 Alternate Identifier(s):
 OSTI ID: 1558687
 Grant/Contract Number:
 SC0011632
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Physical Review D
 Additional Journal Information:
 Journal Volume: 100; Journal Issue: 4; Journal ID: ISSN 24700010
 Publisher:
 American Physical Society (APS)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 77 NANOSCIENCE AND NANOTECHNOLOGY; 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
McAneny, Michael, and Ridgway, Alexander K. New shapes of primordial nonGaussianity from quasisingle field inflation with multiple isocurvatons. United States: N. p., 2019.
Web. https://doi.org/10.1103/PhysRevD.100.043534.
McAneny, Michael, & Ridgway, Alexander K. New shapes of primordial nonGaussianity from quasisingle field inflation with multiple isocurvatons. United States. https://doi.org/10.1103/PhysRevD.100.043534
McAneny, Michael, and Ridgway, Alexander K. Thu .
"New shapes of primordial nonGaussianity from quasisingle field inflation with multiple isocurvatons". United States. https://doi.org/10.1103/PhysRevD.100.043534. https://www.osti.gov/servlets/purl/1599365.
@article{osti_1599365,
title = {New shapes of primordial nonGaussianity from quasisingle field inflation with multiple isocurvatons},
author = {McAneny, Michael and Ridgway, Alexander K.},
abstractNote = {Here, we study a simple extension of quasisingle field inflation in which the inflaton interacts with multiple extra massive scalars known as isocurvatons. Due to the breaking of time translational invariance by the inflaton background, the theory includes kinetic mixings among the inflaton and isocurvatons. These mixings give rise to novel new features in the primordial nonGaussianities of the scalar curvature perturbation. A noteworthy feature is that the amplitude of the squeezed bispectrum can grow nearly as (ks/kl)3 while oscillating as cosγlog(ks/kl), where ks/kl is the ratio of the lengths of the short and long wave vectors. Observation of such a shape would provide evidence for the existence of multiple isocurvatons during inflation. Furthermore, we consider the effects of these nonGaussianities on largescale structure.},
doi = {10.1103/PhysRevD.100.043534},
journal = {Physical Review D},
number = 4,
volume = 100,
place = {United States},
year = {2019},
month = {8}
}
Web of Science
Works referenced in this record:
A new type of isotropic cosmological models without singularity
journal, March 1980
 Starobinsky, A. A.
 Physics Letters B, Vol. 91, Issue 1
Inflationary universe: A possible solution to the horizon and flatness problems
journal, January 1981
 Guth, Alan H.
 Physical Review D, Vol. 23, Issue 2
A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
journal, February 1982
 Linde, A. D.
 Physics Letters B, Vol. 108, Issue 6
ColemanWeinberg theory and the new inflationary universe scenario
journal, August 1982
 Linde, A. D.
 Physics Letters B, Vol. 114, Issue 6
Cosmology for Grand Unified Theories with Radiatively Induced Symmetry Breaking
journal, April 1982
 Albrecht, Andreas; Steinhardt, Paul J.
 Physical Review Letters, Vol. 48, Issue 17
The development of irregularities in a single bubble inflationary universe
journal, September 1982
 Hawking, S. W.
 Physics Letters B, Vol. 115, Issue 4
Dynamics of phase transition in the new inflationary universe scenario and generation of perturbations
journal, November 1982
 Starobinsky, A. A.
 Physics Letters B, Vol. 117, Issue 34
Fluctuations in the New Inflationary Universe
journal, October 1982
 Guth, Alan H.; Pi, SoYoung
 Physical Review Letters, Vol. 49, Issue 15
Spontaneous creation of almost scalefree density perturbations in an inflationary universe
journal, August 1983
 Bardeen, James M.; Steinhardt, Paul J.; Turner, Michael S.
 Physical Review D, Vol. 28, Issue 4
The effective field theory of inflation
journal, March 2008
 Cheung, Clifford; Fitzpatrick, A. Liam; Kaplan, Jared
 Journal of High Energy Physics, Vol. 2008, Issue 03
Nongaussian features of primordial fluctuations in single field inflationary models
journal, May 2003
 Maldacena, Juan
 Journal of High Energy Physics, Vol. 2003, Issue 05
DBI in the sky: NonGaussianity from inflation with a speed limit
journal, December 2004
 Alishahiha, Mohsen; Silverstein, Eva; Tong, David
 Physical Review D, Vol. 70, Issue 12
Large nonGaussianities in singlefield inflation
journal, June 2007
 Chen, Xingang; Easther, Richard; Lim, Eugene A.
 Journal of Cosmology and Astroparticle Physics, Vol. 2007, Issue 06
Quasisingle field inflation and nonGaussianities
journal, April 2010
 Chen, Xingang; Wang, Yi
 Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 04
Primordial NonGaussianities from Inflation Models
journal, January 2010
 Chen, Xingang
 Advances in Astronomy, Vol. 2010
Equilateral nongaussianity and new physics on the horizon
journal, September 2011
 Baumann, Daniel; Green, Daniel
 Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 09
Signature of supersymmetry from the early universe
journal, May 2012
 Baumann, Daniel; Green, Daniel
 Physical Review D, Vol. 85, Issue 10
On soft limits of inflationary correlation functions
journal, November 2012
 Assassi, Valentin; Baumann, Daniel; Green, Daniel
 Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 11
Curvature perturbation spectrum in twofield inflation with a turning trajectory
journal, October 2012
 Pi, Shi; Sasaki, Misao
 Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 10
Effective field theory approach to quasisingle field inflation and effects of heavy fields
journal, June 2013
 Noumi, Toshifumi; Yamaguchi, Masahide; Yokoyama, Daisuke
 Journal of High Energy Physics, Vol. 2013, Issue 6
Equilateral nonGaussianity from heavy fields
journal, November 2013
 Gong, JinnOuk; Pi, Shi; Sasaki, Misao
 Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 11
Imprints of massive primordial fields on largescale structure
journal, February 2016
 Dimastrogiovanni, Emanuela; Fasiello, Matteo; Kamionkowski, Marc
 Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 02
Quasisingle field inflation in the nonperturbative regime
journal, June 2018
 An, Haipeng; McAneny, Michael; Ridgway, Alexander K.
 Journal of High Energy Physics, Vol. 2018, Issue 6
NonGaussian enhancements of galactic halo correlations in quasisingle field inflation
journal, June 2018
 An, Haipeng; McAneny, Michael; Ridgway, Alexander K.
 Physical Review D, Vol. 97, Issue 12
Observational signatures and nonGaussianities of general singlefield inflation
journal, January 2007
 Chen, Xingang; Huang, Minxin; Kachru, Shamit
 Journal of Cosmology and Astroparticle Physics, Vol. 2007, Issue 01
Folded resonant nonGaussianity in general single field inflation
journal, December 2010
 Chen, Xingang
 Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 12
Stimulated creation of quanta during inflation and the observable universe
journal, July 2011
 Agullo, Ivan; Parker, Leonard
 General Relativity and Gravitation, Vol. 43, Issue 10
Stimulated Creation of Quanta During Inflation and the Observable Universe
journal, December 2011
 Agullo, Ivan; Parker, Leonard
 International Journal of Modern Physics D, Vol. 20, Issue 14
NonGaussianities and the stimulated creation of quanta in the inflationary universe
journal, March 2011
 Agullo, Ivan; Parker, Leonard
 Physical Review D, Vol. 83, Issue 6
NonGaussianity from step features in the inflationary potential
journal, January 2012
 Adshead, Peter; Dvorkin, Cora; Hu, Wayne
 Physical Review D, Vol. 85, Issue 2
Correlating features in the primordial spectra
journal, June 2013
 Achúcarro, Ana; Gong, JinnOuk; Palma, Gonzalo A.
 Physical Review D, Vol. 87, Issue 12
Inflation with moderately sharp features in the speed of sound: Generalized slow roll and inin formalism for power spectrum and bispectrum
journal, July 2014
 Achúcarro, Ana; Atal, Vicente; Hu, Bin
 Physical Review D, Vol. 90, Issue 2
(Small) resonant nongaussianities: signatures of a discrete shift symmetry in the effective field theory of inflation
journal, December 2012
 Behbahani, Siavosh R.; Dymarsky, Anatoly; Mirbabayi, Mehrdad
 Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 12
Drifting oscillations in axion monodromy
journal, October 2017
 Flauger, Raphael; McAllister, Liam; Silverstein, Eva
 Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 10
Productive interactions: heavy particles and nonGaussianity
journal, October 2017
 Flauger, Raphael; Mirbabayi, Mehrdad; Senatore, Leonardo
 Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 10
Hybrid quasisingle field inflation
journal, July 2018
 Wang, Yi; Wu, YiPeng; Yokoyama, Jun'ichi
 Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 07
Planck 2015 results : XVII. Constraints on primordial nonGaussianity
journal, September 2016
 Ade, P. A. R.; Aghanim, N.; Arnaud, M.
 Astronomy & Astrophysics, Vol. 594
Nongaussian density perturbations in inflationary cosmologies
journal, October 1987
 Allen, T. J.; Grinstein, B.; Wise, Mark B.
 Physics Letters B, Vol. 197, Issue 12
Imprints of primordial nonGaussianities on largescale structure: Scaledependent bias and abundance of virialized objects
journal, June 2008
 Dalal, Neal; Doré, Olivier; Huterer, Dragan
 Physical Review D, Vol. 77, Issue 12
Stochastic bias from nonGaussian initial conditions
journal, May 2013
 Baumann, Daniel; Ferraro, Simone; Green, Daniel
 Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 05
Biasing and the search for primordial nonGaussianity beyond the local type
journal, April 2017
 Gleyzes, Jérôme; de Putter, Roland; Green, Daniel
 Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 04
Effective field theory of weakly coupled inflationary models
journal, April 2013
 Gwyn, Rhiannon; Palma, Gonzalo A.; Sakellariadou, Mairi
 Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 04
Plancksuppressed operators
journal, January 2014
 Assassi, Valentin; Baumann, Daniel; Green, Daniel
 Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 01
Quantum contributions to cosmological correlations
journal, August 2005
 Weinberg, Steven
 Physical Review D, Vol. 72, Issue 4
Planck 2015 results : XIII. Cosmological parameters
journal, September 2016
 Ade, P. A. R.; Aghanim, N.; Arnaud, M.
 Astronomy & Astrophysics, Vol. 594
Stochastic bias from loops of massive particles during inflation
journal, October 2018
 McAneny, Michael; Ridgway, Alexander K.; Solon, Mikhail P.
 Physics Letters B, Vol. 785
de Sitter quantum loops as the origin of primordial nonGaussianities
journal, March 2019
 An, Haipeng; Wise, Mark B.; Zhang, Zipei
 Physical Review D, Vol. 99, Issue 5
The statistics of peaks of Gaussian random fields
journal, May 1986
 Bardeen, J. M.; Bond, J. R.; Kaiser, N.
 The Astrophysical Journal, Vol. 304
Largescale galaxy bias
journal, February 2018
 Desjacques, Vincent; Jeong, Donghui; Schmidt, Fabian
 Physics Reports, Vol. 733
On the spatial correlations of Abell clusters
journal, September 1984
 Kaiser, N.
 The Astrophysical Journal, Vol. 284
Formation of Galaxies and Clusters of Galaxies by SelfSimilar Gravitational Condensation
journal, February 1974
 Press, William H.; Schechter, Paul
 The Astrophysical Journal, Vol. 187
Planck 2015 results : XI. CMB power spectra, likelihoods, and robustness of parameters
journal, September 2016
 Aghanim, N.; Arnaud, M.; Ashdown, M.
 Astronomy & Astrophysics, Vol. 594
Planck 2015 results : XXIII. The thermal SunyaevZeldovich effectcosmic infrared background correlation
journal, September 2016
 Ade, P. A. R.; Aghanim, N.; Arnaud, M.
 Astronomy & Astrophysics, Vol. 594
Drifting oscillations in axion monodromy
text, January 2017
 Flauger, Raphael; McAllister, Liam; Silverstein, Eva
 Deutsches ElektronenSynchrotron, DESY, Hamburg
Works referencing / citing this record:
The Hunt for Primordial Interactions in the LargeScale Structures of the Universe
journal, August 2019
 Biagetti, Matteo
 Galaxies, Vol. 7, Issue 3
Simple, exact model of quasisingle field inflation
journal, March 2020
 Welling, Yvette
 Physical Review D, Vol. 101, Issue 6