arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2209.07398gr-qchep-th
收藏

随机引力平面波中的量子标量场传播子

Quantum scalar field propagator in a stochastic gravitational plane wave

Z. Haba

摘要:

随机度规既可以出现在经典引力中,也可以出现在量子引力中。我们证明了如果线性化的随机高斯引力平面波的频谱为$ω^{4γ-1}$($0\leq γ<1$),那么当动量较大时,标量场的等时传播子表现为$p^{-\frac{1}{1-γ}}$.我们讨论的量子场论模型,这种反常行为可能出现。

英文摘要:

A stochastic metric can appear in classical as well as in quantum gravity. We show that if the linearized stochastic Gaussian gravitational plane wave has the frequency spectrum $ω^{4γ-1}$ ($0\leq γ<1$) then the equal-time propagator of the scalar field behaves as $p^{-\frac{1}{1-γ}}$for large momenta. We discuss models of quantum field theory where such anomalous behaviour can appear.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑