论文标题
随机重力平面波中的量子标量场传播器
Quantum scalar field propagator in a stochastic gravitational plane wave
论文作者
论文摘要
随机度量可以出现在经典和量子重力中。我们表明，如果线性的随机高斯引力波具有频率频谱$ω^{4γ-1} $（$ 0 \ 0 \ leqγ<1 $），那么标量场的相等时间传播器的表现为$ p^{ - \ frac {1}} {1} {1-γ}}} $。我们讨论了量子场理论的模型，其中可能会出现这种异常行为。
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.
