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Mutual interactions between objects oscillating in isotopically pure superfluid 4He in the T → 0 limit
2012
Low temperature physics (Woodbury, N.Y., Print)
We report the results of experiments to explore interactions between physically separated oscillating objects in isotopically pure superfluid 4 He at T ∼ 10 mK. The investigations focused mainly on 32 kHz quartz tuning forks, but also consider a nearby 1 kHz oscillating grid. The low-drive linewidth (LDL) and resonant frequency f d of a detector fork were monitored while the maximum velocity of a transmitter fork, separated from the detector by a few mm, was varied over a wide range. Clear
doi:10.1063/1.4765091
fatcat:qzd7utjxcjclbgtenzqycokczy