Structure of surface vortex sheet between two rotating 3He superfluids

Abstract

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 half-quantum units, independently of the structure of the source vorticity in the bulk. These results are consistent with our NMR measurements.

4 pages, 4 figures

References in corpus (4)

• Shear flow and Kelvin-Helmholtz instability in superfluids
• Sweeping Away the Monopole Problem
• Interaction of Magnetic Monopoles and Domain Walls
• Vortex lines or sheets - what is formed in dynamic drives?

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• 50 years in the Landau Institute environment