标题： 双 inflation 中的关联绝热和等曲率扰动 显示英文标题

标题： Correlated adiabatic and isocurvature perturbations from double inflation

摘要： 显示双暴胀（两个最小耦合的重标量场）可以产生相关的绝热和等曲率原初扰动。 根据模型的两个相关参数，计算了对原初扰动的贡献，特别强调了相关性，该相关性可以通过相关谱进行定量表示。 最后，原初谱被数值演化以获得CMBR各向异性多极期望值。 结果表明，混合和相关性的存在可以显著改变温度涨落的预测。 显示英文摘要

摘要： It is shown that double inflation (two minimally coupled massive scalar fields) can produce correlated adiabatic and isocurvature primordial perturbations. Depending on the two relevant parameters of the model, the contributions to the primordial perturbations are computed, with special emphasis on the correlation, which can be quantitatively represented by a correlation spectrum. Finally the primordial spectra are evolved numerically to obtain the CMBR anisotropy multipole expectation values. It turns out that the existence of mixing and correlation can alter very significantly the temperature fluctuation predictions.