The ζ-ζ correlator is time dependent

E. O. Kahya; V. K. Onemli; R. P. Woodard

doi:10.1016/j.physletb.2010.09.050

The ζ-ζ correlator is time dependent

E. O. Kahya^*
, V. K. Onemli
, R. P. Woodard

^*Bu çalışma için yazışmadan sorumlu yazar

Fizik Mühendisliği Bölümü

Friedrich Schiller University Jena
University of Florida

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

63 Atıf (Scopus)

Özet

We comment on the recent arguments by Senatore and Zaldarriaga that loop corrections to the ζ-ζ correlator cannot grow with time after first horizon crossing. We first emphasize the need to search for such secular dependence in corrections whose in-out matrix elements are infrared singular on an infinite spatial manifold. Then we give examples of such time dependence from pure quantum gravity and from scalar potential models. Finally, we point out that this time dependence arises from inflationary particle production and is therefore unlikely to endanger the preservation of super-horizon correlations as a record of inflation.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	101-107
Sayfa sayısı	7
Dergi	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Hacim	694
Basın numarası	2
DOI'lar	https://doi.org/10.1016/j.physletb.2010.09.050
Yayın durumu	Yayınlandı - 1 Kas 2010

Finansman

We are grateful for correspondence with S. Deser and S. Weinberg. This work was partially supported by Marie Curie Grant IRG-247803, by NSF grants PHY-0653085 and PHY-0855021 , and by the Institute for Fundamental Theory at the University of Florida .

Finansörler	Finansör numarası
Institute for Fundamental Theory at the University of Florida
National Science Foundation	PHY-0855021, PHY-0653085
Directorate for Mathematical and Physical Sciences	0855021, 0653085
Marie Curie	IRG-247803

Belgeye Erişim

10.1016/j.physletb.2010.09.050

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "The ζ-ζ correlator is time dependent",

abstract = "We comment on the recent arguments by Senatore and Zaldarriaga that loop corrections to the ζ-ζ correlator cannot grow with time after first horizon crossing. We first emphasize the need to search for such secular dependence in corrections whose in-out matrix elements are infrared singular on an infinite spatial manifold. Then we give examples of such time dependence from pure quantum gravity and from scalar potential models. Finally, we point out that this time dependence arises from inflationary particle production and is therefore unlikely to endanger the preservation of super-horizon correlations as a record of inflation.",

keywords = "Cosmology, Inflation, Infrared logarithms, Quantum gravity, Quantum loop effects",

author = "Kahya, \{E. O.\} and Onemli, \{V. K.\} and Woodard, \{R. P.\}",

year = "2010",

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doi = "10.1016/j.physletb.2010.09.050",

language = "English",

volume = "694",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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T1 - The ζ-ζ correlator is time dependent

AU - Kahya, E. O.

AU - Onemli, V. K.

AU - Woodard, R. P.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - We comment on the recent arguments by Senatore and Zaldarriaga that loop corrections to the ζ-ζ correlator cannot grow with time after first horizon crossing. We first emphasize the need to search for such secular dependence in corrections whose in-out matrix elements are infrared singular on an infinite spatial manifold. Then we give examples of such time dependence from pure quantum gravity and from scalar potential models. Finally, we point out that this time dependence arises from inflationary particle production and is therefore unlikely to endanger the preservation of super-horizon correlations as a record of inflation.

AB - We comment on the recent arguments by Senatore and Zaldarriaga that loop corrections to the ζ-ζ correlator cannot grow with time after first horizon crossing. We first emphasize the need to search for such secular dependence in corrections whose in-out matrix elements are infrared singular on an infinite spatial manifold. Then we give examples of such time dependence from pure quantum gravity and from scalar potential models. Finally, we point out that this time dependence arises from inflationary particle production and is therefore unlikely to endanger the preservation of super-horizon correlations as a record of inflation.

KW - Cosmology

KW - Inflation

KW - Infrared logarithms

KW - Quantum gravity

KW - Quantum loop effects

UR - https://www.scopus.com/pages/publications/77957770454

U2 - 10.1016/j.physletb.2010.09.050

DO - 10.1016/j.physletb.2010.09.050

M3 - Article

AN - SCOPUS:77957770454

SN - 0370-2693

VL - 694

SP - 101

EP - 107

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2

ER -

The ζ-ζ correlator is time dependent

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap