共查询到20条相似文献,搜索用时 46 毫秒
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We investigate the warm inflation condition in loop quantum cosmology. In our consideration, the system is described by a tachyon field interacted with radiation. The exponential potential function, V(?)=V0e−α?, with the same order parameters V0 and α, is taken as an example of this tachyon warm inflation model. We find that, for the strong dissipative regime, the total number of e-folds is less than the one in the classical scenario, and for the weak dissipative regime, the beginning time of the warm inflation will be later than the tachyon (cool) inflation. 相似文献
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We consider the influence of the local squeezed vacuum fields on two initially entangled two-qubit system. By considering the upper bound of entanglement under time evolution, we find that the decay of the quantum entanglement shows different behavior for different time scales (t?max{(2βA)−1,(2βB)−1} and t?min{(2βA)−1,(2βB)−1}). The relative phase of the squeezing environment can also affect the entanglement dynamics profoundly. 相似文献
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