Structure of the surface vortex sheet between two rotating 3He superfluids

Risto Hänninen, Rob Blaauwgeers, Vladimir Eltsov, Antti Finne, Matti Krusius, Erkki Thuneberg, Grigory Volovik

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    We study a two-phase sample of superfluid 3He where vorticity exists in one phase (3He−A) but cannot penetrate across the interfacial boundary to a second coherent phase (3He−B). We calculate the bending of the vorticity into a surface vortex sheet on the interface and solve the internal structure of this new type of vortex sheet. The compression of the vorticity from three to two dimensions enforces a structure which is made up of 12-quantum units, independently of the structure of the source vorticity in the bulk. These results are consistent with our NMR measurements.
    Original languageEnglish
    Article number225301
    Pages (from-to)1-4
    JournalPhysical Review Letters
    Issue number22
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed


    • superfluid 3He
    • vortex sheet

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