Structure of surface vortex sheet between two rotating 3He superfluids

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

2003-03-18

arxiv.org/abs/cond-mat/0303343v1

Phys. Rev. Lett. 90, 225301 (2003)

Physics

Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.90.225301

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.

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