Vortex arrays of coexisting singly and doubly quantized vortex lines in 3 He - A
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چکیده
In superfluid He-A singly and doubly quantized vortex lines can coexist in a rotating container. We measure with NMR techniques the radial distribution of the two vortex types in an array of vortex lines. The radial composition is found to depend on the procedure by which the array has been formed. The result shows that in superfluid He the energy barriers separating different configurations of the vortex array are inpenetrably high for a metastable state to relax.
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تاریخ انتشار 2001