Frequency Spectra Analysis of Space and Time Averaged Quantum Stress Tensor Fluctuations

• URL: http://arxiv.org/abs/2211.12001v1
• Date: Tue, 22 Nov 2022 04:37:32 GMT
• Title: Frequency Spectra Analysis of Space and Time Averaged Quantum Stress Tensor Fluctuations
• Authors: Peter Wu, L. H. Ford, Enrico D. Schiappacasse
• Abstract summary: We build on prior results to characterize the particle frequencies associated with quantum fluctuations of different magnitudes. Our findings provide a way identify the largest quantum fluctuation that may be probed in experiments relying on frequency-dependent interactions.
• Score: 6.876539868141691
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Observing physical effects of large quantum stress tensor fluctuations requires knowledge of the interaction 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.

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