具有预相等磁场的广义CMB初始条件
Generalized CMB initial conditions with pre-equality magnetic fields
摘要：
导出了与预相等磁场的存在相容的最一般的CMB各向异性的初始条件。当等离子体由光子、重子、电子、CDM粒子和中微子组成时，截断的Einstein-Boltzmann层次结构的初始数据考虑了一个磁化的绝热模和四个（磁化的）非绝热模。在得到各种解的解析形式后，对相应的初始数据集对Einstein-Boltzmann级数进行数值积分。TT，TE和EE角功率谱的说明和讨论的CDM辐射模式，重子辐射模式和中微子扇区的非绝热模式的磁化推广。初始条件的混合物进行检查，要求磁化的绝热模式占主导地位的其余非绝热的贡献。在后一种情况下，通过在高多极（即$\ell >1000$）下对TT、TE和EE角功率谱进行组合分析，可以避免初始数据的互补集之间可能的简并。
英文摘要：
The most general initial conditions of CMB anisotropies, compatible with the presence of pre-equality magnetic fields, are derived. When the plasma is composed by photons, baryons, electrons, CDM particles and neutrinos, the initial data of the truncated Einstein-Boltzmann hierarchy contemplate one magnetized adiabatic mode and four (magnetized) non-adiabatic modes. After obtaining the analytical form of the various solutions, the Einstein-Boltzmann hierarchy is numerically integrated for the corresponding sets of initial data. The TT, TE and EE angular power spectra are illustrated and discussed for the magnetized generalization of the CDM-radiation mode, of the baryon-radiation mode and of the non-adiabatic mode of the neutrino sector. Mixtures of initial conditions are examined by requiring that the magnetized adiabatic mode dominates over the remaining non-adiabatic contributions. In the latter case, possible degeneracies between complementary sets of initial data might be avoided through the combined analysis of the TT, TE and EE angular power spectra at high multipoles (i.e. $\ell >1000$).
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