Scattering of second sound waves by quantum vorticity.
نویسندگان
چکیده
A new method of detection and measurement of quantum vorticity by scattering second sound off quantized vortices in superfluid Helium is suggested. Theoretical calculations of the relative amplitude of the scattered second sound waves from a single quantum vortex, a vortex ring, and bulk vorticity are presented. The relevant estimates show that an experimental verification of the method is feasible. Moreover, it can even be used for the detection of a single quantum vortex. PACS Numbers: 43.20.+g, 47.37.+q, 67.40.Pm, 67.40.Vs Permanent address: Departamento de F́ısica, Universidad de Chile, Casilla 487-3, Santiago, Chile Permanent address: Department of Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
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عنوان ژورنال:
- Physical review letters
دوره 75 6 شماره
صفحات -
تاریخ انتشار 1995