2015/05/31 by Fangyu Li, Hao Wen, Zhen-Yun Fang +5
Physics and Astronomy · #Amplitude #Astrophysics #Black Holes and Theoretical Physics #Computational physics #Cosmic microwave background #Cosmology and Gravitation Theories #Gravitational wave #Photon #Physics #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum mechanics #gr-qc
paper · pdf · doi:10.1016/j.nuclphysb.2016.08.009
published as Nuclear Physics B 911 (2016) 500-516 · 22 pages, 6 figures, research article
openalex publication_date 2016/08/17 · arxiv created 2017/04/15 · arxiv updated 2017/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Interaction of very low-frequency primordial (relic) gravitational waves (GWs) to cosmic microwave background (CMB) can generate B-mode polarization. Here, for the first time we point out that the electromagnetic (EM) response to high-frequency GWs (HFGWs) would produce quasi-B-mode distribution of the perturbative photon fluxes. We study the duality and high complementarity between such two B-modes, and it is shown that such two effects are from the same physical origin: the tensor perturbation of the GWs and not the density perturbation. Based on this quasi-B-mode in HFGWs and related numerical calculation, it is shown that the distinguishing and observing of HFGWs from the braneworld would be quite possible due to their large amplitude, higher frequency and very different physical behaviors between the perturbative photon fluxes and background photons, and the measurement of relic HFGWs may also be possible though face to enormous challenge.