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对κ=0的共形平直时空,由共形反常迹计算了物质场真空的单圈项对有效作用量的贡献,得到一个避免宇宙奇点的时间对称的反弹宇宙解。For conformal flat space-time of k = 0, we calculate the one-loop contribution to the effective action from the conformal trace anomaly and obtain a time symmetric bouncing cosmological solution, which avoids the cosmological singularity.
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