2003/03/18 by R. Hänninen, Risto Hänninen, R. Blaauwgeers +6 · 31 citations
Mathematics · Physics and Astronomy · #Atomic and Subatomic Physics Research #Boundary (topology) #Geometry #Mathematical analysis #Mathematics #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Surface (topology) #Thermodynamics #Vortex #Vortex sheet #Vorticity #cond-mat
paper · pdf · doi:10.1103/physrevlett.90.225301
published in Physical Review Letters 90(22), 225301 (American Physical Society) · 4 pages, 4 figures
arxiv created 2003/03/18 · openalex publication_date 2003/06/03 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study a two-phase sample of superfluid 3He where vorticity exists in one phase (3He\mathrm\text\ensuremath-A) but cannot penetrate across the interfacial boundary to a second coherent phase (3He\mathrm\text\ensuremath-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 (1)/(2)-quantum units, independently of the structure of the source vorticity in the bulk. These results are consistent with our NMR measurements.