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Imprint of Scalar Dark Energy on Cosmic Microwave Background Polarization

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arxiv 1307.6298 v2 pith:GLXDVYK4 submitted 2013-07-24 astro-ph.CO

Seokcheon Lee , Guo-Chin Liu , Kin-Wang Ng This is my paper · ORCID
classification astro-ph.CO
keywords polarizationcosmicscalarbackgrounddarkenergyfieldgravitational
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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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Cited by 1 Pith paper

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  1. Constraints on Anisotropic Cosmic Birefringence from CMB B-mode Polarization

    astro-ph.CO 2025-04 conditional novelty 5.0 of 10

    The combined analysis of SPTpol, ACT, POLARBEAR, and BICEP data constrains the anisotropic cosmic birefringence amplitude to ACB = 0.42^{+0.40}_{-0.34} × 10^{-4}, consistent with zero.

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