论文标题
空间和时间平均量子应力张量波动的频率光谱分析
Frequency Spectra Analysis of Space and Time Averaged Quantum Stress Tensor Fluctuations
论文作者
论文摘要
观察大量子应力张量波动的物理效应需要了解探针与基础量子场的颗粒之间的相互作用。量子应力张量操作员必须首先在时间或空间和时间上取平均值，以赋予有意义的结果，其细节可能与物理测量过程相对应。我们基于先前的结果，以表征与不同幅度的量子波动相关的粒子频率。对于球形腔中无质量标量场的时间衍生物的平方，我们发现这些频率在幂律行为中是有界的。我们的发现提供了一种识别最大的量子波动的方式，该量子波动在实验中可能依赖于频率相关的相互作用。
Observing physical effects of large quantum stress tensor fluctuations requires knowledge of the interactions between the probe and the particles of the underlying quantum fields. The quantum stress tensor operators must first be averaged in time alone or space and time to confer meaningful results, the details of which may correspond to the physical measurement process. We build on prior results to characterize the particle frequencies associated with quantum fluctuations of different magnitudes. For the square of time derivatives of the massless scalar field in a spherical cavity, we find that these frequencies are bounded above in a power law behavior. Our findings provide a way identify the largest quantum fluctuation that may be probed in experiments relying on frequency-dependent interactions.
