论文标题
用CMB极化探测Lorentz侵略性动力学
Probing Lorentz-violating electrodynamics with CMB polarization
论文作者
论文摘要
我们对宇宙微波背景（CMB）各向异性的洛伦兹违规的特征进行了全面研究。在最小标准模型扩展（SME）的框架中，我们考虑了CPT-ODD和CPT-even的可重新分析运营商产生的效果。这些操作员分别负责采购宇宙双折射和循环极化。我们共同传播所有相关的洛伦兹竞争参数对CMB可观察物的影响，并提供最新CMB数据集的约束。我们将cpt-even系数绑定到$ k_ {f，e+b} <2.31 \ times 10^{ - 31} $ in 95 \％cl。这可以提高以前的CMB边界，一个数量级。我们在CPT-ODD系数上获得的极限，即$ | k _ {（v）00}^{（3）} | <1.54 \ times 10^{ - 44} \; {\ rm gev} $和$ | \ mathbf {k_ {af}} | <0.74 \ times 10^{ - 44} \; {\ rm gev} $在95 \％cl中，分别比以前的基于CMB的限制强一个和两个数量级，也从非CMB搜索中取代。该分析提供了迄今为止在CMB搜索中最小中小型企业中的CPT侵入系数上的最强限制。
We perform a comprehensive study of the signatures of Lorentz violation in electrodynamics on the Cosmic Microwave Background (CMB) anisotropies. In the framework of the minimal Standard Model Extension (SME), we consider effects generated by renormalizable operators, both CPT-odd and CPT-even. These operators are responsible for sourcing, respectively, cosmic birefringence and circular polarization. We propagate jointly the effects of all the relevant Lorentz-violating parameters to CMB observables and provide constraints with the most recent CMB datasets. We bound the CPT-even coefficient to $k_{F,E+B} < 2.31 \times 10^{-31}$ at 95\% CL. This improves previous CMB bounds by one order of magnitude. The limits we obtain on the CPT-odd coefficients, i.e. $|k_{(V)00}^{(3)}| < 1.54 \times 10^{-44} \; {\rm GeV}$ and $|\mathbf{k_{AF}}| < 0.74 \times 10^{-44} \; {\rm GeV}$ at 95\% CL, are respectively one and two orders of magnitude stronger than previous CMB-based limits, superseding also bounds from non-CMB searches. This analysis provides the strongest constraints to date on CPT-violating coefficients in the minimal SME from CMB searches.
