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Cited by 289

The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.

CMB polarization from secondary vector and tensor modes

Open access
Mollerach, Silvia, Harari, Diego, Matarrese, Sabino·2004·Physical Review D
DOI 10.1103/physrevd.69.063002
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Abstract

We consider a novel contribution to the polarization of the cosmic microwave background induced by vector and tensor modes generated by the nonlinear evolution of primordial scalar perturbations. Our calculation is based on relativistic second-order perturbation theory and allows us to estimate the effects of these secondary modes on the polarization angular power spectra. We show that a nonvanishing B-mode polarization unavoidably arises from pure scalar initial perturbations, thus limiting our ability to detect the signature of primordial gravitational waves generated during inflation. This secondary effect dominates over that of primordial tensors for an inflationary tensor-to-scalar ratio $r<{10}^{\ensuremath{-}6}.$ The magnitude of the effect is smaller than the contamination produced by the conversion of polarization of type E into type B, by weak gravitational lensing. However, the lensing signal can be cleaned, making the secondary modes discussed here the actual background limiting the detection of small amplitude primordial gravitational waves.

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Metadata

Authors
Mollerach, S., Harari, D., & Matarrese, S.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2004-03-12
Volume
69
Issue
6
ISSN
  • 0556-2821 (ISSN-L)
  • 1550-7998
  • 1550-2368
DOI
10.1103/physrevd.69.063002
OpenAlex
W2005783817
Cited by
289
References
44
FWCI
4.73
Type
journal article
Language
en
Open access
green

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