摘要
We study the physical origin of the negative pressure for quantum scalar fields in inffationary models.The vacuum state and other quantum coherent states are explicitly constructed for the charged and uncharged relativistic boson condensates,in which the pressure takes negative values.
作者
张杨
ZHANG Yang(Astrophysics Center,University of Science and Technology of China,National Astronomical Observatories,Chinese Academy of Sciences,Hefei 230026)
基金
Supported by the National Natural Science Foundation of China under Grant No.19773013,and the Chinese Academy of Sciences KJ952-J1-352.
