论文标题
原始平价违规可以解释观察到的宇宙双折射吗？
Can primordial parity violation explain the observed cosmic birefringence?
论文作者
论文摘要
最近，在CMB极化数据中发现了$ e $ - 和$ e $ - $ e $ - $ - $ mmode mode偏振（CMB），宇宙双向旋转角度$β\ bout $β\ bireβ\ bire the cosmic Birefringence很好地解释了。我们仔细研究了解释原始手性重力波（CGWS）观察到的$ eb $相关性的可能性，这些波浪可以在原始宇宙中的奇异理论中产生。我们发现，由于$ bb $自动相关的生产过多，CGWS方案不起作用，而Sptpol和Polarbear观察到的$ BB $自动相关。
Recently, the cross-correlation between $E$- and $B$-mode polarization of the cosmic microwave background (CMB), which is well explained by cosmic birefringence with rotation angle $β\approx 0.3$ deg, has been found in CMB polarization data. We carefully investigate the possibility of explaining the observed $EB$ correlation by the primordial chiral gravitational waves (CGWs), which can be generated in the parity-violating theories in the primordial Universe. We found that the CGWs scenario does not work due to the overproduction of the $BB$ auto-correlation which far exceeds the observed one by SPTPol and POLARBEAR.
