Wiggles in the cosmic microwave background radiation : echoes from non-singular cyclic-inflation

Biswas, Tirthabir and Mazumdar, Anupam and Shafieloo, Arman (2010) Wiggles in the cosmic microwave background radiation : echoes from non-singular cyclic-inflation. Physical Review D – Particles and Fields, 82 (12): 123517. ISSN 1550-2368

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Abstract

In this paper we consider a unique model of inflation where the universe undergoes rapid asymmetric oscillations, each cycle lasting millions of Planck time. Over many-many cycles the space-time expands to mimic the standard inflationary scenario. Moreover, these rapid oscillations leave a distinctive periodic signature in ln(k) in the primordial power spectrum, where k denotes the comoving scale. The best fit parameters of the cyclic-inflation model provides a very good fit to the 7-year WMAP data.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D – Particles and Fields
Additional Information:
© 2010 The American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/core/keywords/physics
Subjects:
?? physicsqc physics ??
ID Code:
55929
Deposited By:
Deposited On:
17 Jul 2012 15:23
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Apr 2024 23:49