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Large zero point density fluctuations in fluids
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DOI：10.1103/PhysRevResearch.2.032028.png)
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Abstract
En 中文
Zero point density fluctuations in a liquid and their potential observation by light scattering are discussed. It is suggested that there are two distinct effects of interest. One gives an average number of scattered photons, and depends upon an inverse power of the photon wavelength. The second effect arises in the scattering of finite size photon wave packets and depends upon an inverse power of the spatial size of the wave packet, as well as upon the shape of the wave packet. This effect appears as large fluctuations in the number of scattered photons, and is analogous to the vacuum fluctuations of space-time averages of the energy density in quantum field theory. It is an illustration that quantum fluctuations become larger when probed on smaller length and time scales.
Keywords:
LIQUID
PRESSURE
VOLUME
HE-3
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