Flow of 3He-B through narrow channels

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Abstract

The critical current Jc of superfluid 3He-B through 0.8-μm-diam channels has been measured. For small currents the pressure difference ΔP=0 along the flow channels within the resolution, implying small or zero dissipation. ΔP grows rapidly with increasing current above Jc; a clear transition to dissipative flow is thus observed. The temperature dependence of Jc indicates that the superfluid density and the critical temperature are reduced inside the narrow flow channels.

Details

Original languageEnglish
Pages (from-to)812-816
Number of pages5
JournalPhysical Review Letters
Volume48
Issue number12
Publication statusPublished - Mar 1982
MoE publication typeA1 Journal article-refereed

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