开宇宙的XCDM模型

XCDM model for the open universe

用XCDM模型探讨开宇宙的情形.结果表明,当考虑宇宙加速膨胀的事实后,该模型下的冷暗物质(CDM)场将具有从负能正压状态向正能负压状态演化这一怪异的特点.

In this paper we discussed the xCDM model under the open universe. It is showed that today the dark matter field, having positive energy and negative pressure, is evolved from the phase of negative energy and of positive pressure, if the universe is accelerating.