Number Fluctuations in a Macroscopic Subvolume of Quantum Fluids: A Possible Experiment
In this paper, the particle number fluctuations in a macroscopic subvolume of a quantum Bose fluid are considered, and the effects of the existence of a Bose-Einstein condensate on the magnitude of number fluctuations is discussed. The feasibility of measuring such particle number fluctuations is analyzed and the possibility is offered that such measurements could provide information on the existence of a Bose-Einstein condensate in liquid 4He as well as the recently discussed “exotic” quantum fluid, polarized atomic hydrogen.
KeywordsRelative Fluctuation Number Fluctuation Momentum Distribution Function High Temperature Approximation Single Particle Wavefunctions
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