The imprint of ultralight vector fields on gravitational wave propagation

Abstract

We study the effects of ultralight vector field (ULVF) dark matter on gravitational-wave propagation. We find that the coherent oscillations of the vector field induce an anisotropic suppression of the gravitational-wave amplitude as compared to the $\Lambda$CDM prediction. The effect is enhanced for smaller vector field masses and peaks for modes around $k=H_0/\sqrt{a(H=m)}$. The suppression is negligible for astrophysically generated gravitational waves but could be sizeable for primordial gravity waves. We discuss the possibility of detecting such an effect on the tensor power spectrum with future CMB B-mode polarization detectors. We find that for the sensitivity of the upcoming LiteBIRD mission, the correction to the tensor power spectrum at decoupling time could be distinguishable from that of $\Lambda$CDM for ULVF masses $m\lesssim 10^{-26}$ eV and sufficiently large abundances.

arXiv comment10 pages, 10 figures, matches version to appear in PRD

References in corpus (27)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
• Ultralight scalars as cosmological dark matter
• Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
• WISPy Cold Dark Matter
• Vector Dark Matter from Inflationary Fluctuations
• The Quest for B Modes from Inflationary Gravitational Waves
• Dark Light, Dark Matter and the Misalignment Mechanism
• New Sensitivity Curves for Gravitational-Wave Signals from Cosmological Phase Transitions
• Relic Abundance of Dark Photon Dark Matter
• Dark Photon Dark Matter Produced by Axion Oscillations
• Parametric Resonance Production of Ultralight Vector Dark Matter
• Vector dark matter production at the end of inflation
• The POLARBEAR-2 and the Simons Array Experiment
• BICEP Array: a multi-frequency degree-scale CMB polarimeter
• Misalignment & Co.: (Pseudo-)scalar and vector dark matter with curvature couplings
• Isotropy theorem for cosmological vector fields
• Searching for vector dark matter with an optomechanical accelerometer
• Condensate of Massive Graviton and Dark Matter
• Light Dark Photon Dark Matter from Inflation
• Pulsar timing residual induced by ultralight vector dark matter
• Constraints on anharmonic corrections of Fuzzy Dark Matter
• Vector Fuzzy Dark Matter, Fifth Forces, and Binary Pulsars
• Perturbations of ultralight vector field dark matter
• Isotropy theorem for arbitrary-spin cosmological fields
• Dark photon searches with atomic transitions

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• Dark Matter from Entropy Perturbations in Curved Field Space
• Vector dark radiation and gravitational-wave polarization
• Cosmological Gravitational Waves from Ultralight Vector Dark Matter