Quantum corrections during inflation and conservation of adiabatic perturbations
Quantum corrections during inflation and conservation of adiabatic perturbations
复制标题
暴涨过程中的量子修正和绝热扰动守恒
DOI：
10.1103/physrevd.81.043535
复制
发表时间：
2009
影响因子：
5
通讯作者：
David Campo
中科院分区：
文献类型：
--
作者：
David Campo
研究了量子修正打破单场暴胀中超视界绝热微扰守恒的可能性。我考虑了哈密顿形式中无质量物质场的最低阶修正。因此，特别强调的是重正化。反项与拉格朗日形式主义中的相同。蝌蚪的重整化值为零。我发现一个可能的长期依赖的功率谱在一个循环由于跟踪异常，但这个结果取决于近似的模式，是不确定的。被量子修正破坏的对称性是伸缩不变性。对逆反应问题的观点进行了简要讨论。
The possibility that quantum corrections break the conservation of superhorizon adiabatic perturbations in single field inflation is examined. I consider the lowest order corrections from massless matter fields in the Hamiltonian formalism. Particular emphasis is therefore laid on the renormalization. The counterterms are the same as in the Lagrangian formalism. The renormalized value of the tadpole is zero. I find a possible secular dependence of the power spectrum at one loop due to the trace anomaly, but this result depends on the approximation of the modes and is inconclusive. The symmetry (not) violated by the quantum corrections is the invariance by dilatation. Perspectives on the backreaction problem are briefly discussed.
影响因子：
6.4
作者：
D. Lyth;Karim A. Malik;M. Sasaki
通讯作者：
D. Lyth;Karim A. Malik;M. Sasaki