标题： 关于原初状态方程的转变 显示英文标题

标题： On primordial equation of state transitions

摘要： 我们重新审视从一般状态方程参数到慢滚暴胀最终阶段的转变物理学。 我们表明，组成宇宙微波背景的模式很可能不会包含前暴胀状态方程转变的痕迹，同时与观测结果一致。 我们通过考虑此类转变导致激发振幅的观测一致性限制来实现这一点。 因此，最初导致暴胀的物理学可能无法通过宇宙微波背景的观测来探测。 此外，我们表明，状态方程转变可能解释观测到的低多极功率抑制异常的可能性很小。 显示英文摘要

摘要： We revisit the physics of transitions from a general equation of state parameter to the final stage of slow-roll inflation. We show that it is unlikely for the modes comprising the cosmic microwave background to contain imprints from a pre-inflationary equation of state transition and still be consistent with observations. We accomplish this by considering observational consistency bounds on the amplitude of excitations resulting from such a transition. As a result, the physics which initially led to inflation likely cannot be probed with observations of the cosmic microwave background. Furthermore, we show that it is unlikely that equation of state transitions may explain the observed low multipole power suppression anomaly.