Cosmological Signature of New Parity-Violating Interactions
- Creators
- Lue, Arthur
- Wang, Limin
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Kamionkowski, Marc
Abstract
Are there any manifestations of parity violation other than those observed in weak interactions? A map of the cosmic microwave background (CMB) temperature and polarization will provide a new signature of P violation. We examine two classes of P-violating interactions that would give rise to such a signature. The first interaction leads to a cosmological birefringence, possibly driven by quintessence. The other interaction leads to an asymmetry in the amplitude of right- versus left-handed gravitational waves produced during inflation. The Planck Surveyor should improve upon the current sensitivity to birefringence. While the primordial effect would most likely elude detection by MAP and Planck, it may be detectable with a future dedicated CMB polarization experiment.
Additional Information
© 1999 The American Physical Society Received 7 December 1998 We used a modified version of CMBFAST [8,16] to calculate the CTCl . We thank E. Weinberg, B. Greene, and S. Carroll for useful discussions. This work was supported by a DoE Outstanding Junior Investigator Award, DE-FG02-92ER40699, NASA Grant No. NAG5-3091, and the Alfred P. Sloan Foundation.Attached Files
Published - LUEprl99.pdf
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Additional details
- Eprint ID
- 2387
- Resolver ID
- CaltechAUTHORS:LUEprl99
- Department of Energy (DOE)
- DE-FG02-92ER40699
- NASA
- NAG5-3091
- Alfred P. Sloan Foundation
- Created
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2006-04-02Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field