Moroi Takeo, Takahashi Tomo
Department of Physics, Tohoku University, Sendai 980-8578, Japan.
Phys Rev Lett. 2004 Mar 5;92(9):091301. doi: 10.1103/PhysRevLett.92.091301. Epub 2004 Mar 3.
We consider cosmic microwave background (CMB) anisotropy in models with quintessence, taking into account isocurvature fluctuation. It is shown that, if the primordial fluctuation of the quintessence has a correlation with the adiabatic density fluctuations, the CMB angular power spectrum C(l) at low multipoles can be suppressed without affecting C(l) at high multipoles. A possible scenario for generating a correlated mixture of the quintessence and adiabatic fluctuations is also discussed.
我们在考虑等曲率涨落的情况下，研究了具有第五元素的模型中的宇宙微波背景（CMB）各向异性。结果表明，如果第五元素的原初涨落与绝热密度涨落相关，则低多极矩处的CMB角功率谱C(l)可以被压低，而不影响高多极矩处的C(l)。我们还讨论了产生第五元素与绝热涨落相关混合的一种可能情形。
