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Novel Experiments in Superfluid Helium-3 at Ultralow Temperatures

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At Lancaster University we have state-of-the-art facilities for cooling into the microkelvin regime and I will outline some of the techniques we employ. Currently our main interest is in the properties of superfluid helium-3, on which we routinely make measurements from 100 to 300 microK in a sophisticated nested nuclear demagnetisation configuration. So far below its transition temperature, this liquid is the purest and most ordered substance to which we have experimental access. I will describe some of our recent experiments, including those on phase transitions within the superfluid, the discovery of pure quantum turbulence, and their implications for other areas of physics.

This talk is part of the Quantum Matter Seminar series.

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