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arXiv · 1307.6298

Imprint of Scalar Dark Energy on Cosmic Microwave Background Polarization

Seokcheon Lee·Guo-Chin Liu·Kin-Wang Ng
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Abstract

We study the imprint of a coupling of scalar dark energy to photon on the cosmic microwave background (CMB) polarization. The time-evolving field value as well as the perturbation of the scalar generically induce $B$-mode polarization. Future CMB data will find either a cosmic parity violation in temperature-polarization correlation due to the field value, or perturbation-induced $B$-mode polarization that is almost indistinguishable from that generated by gravitational lensing or primordial gravitational waves.

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Seokcheon Lee, Guo-Chin Liu, Kin-Wang Ng. 2014-03-17. Imprint of Scalar Dark Energy on Cosmic Microwave Background Polarization. https://doi.org/10.1103/physrevd.89.063010

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