Beschreibung:
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Although it is a dilute non-degenerate system, a gas of spin polarized <jats:sup>3</jats:sup>He can exhibit interesting quantum properties due to particle indistinguishability. One of these effects is a variation of the heat conduction coefficient as a function of the nuclear polarization. We describe an experiment where this change has been observed and measured in the 1.5 - 4.2 K range. The experimental results, in reasonable agreement with theoretical predictions, are discussed.
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