Conferences and symposia. 100th anniversary of the birth of E.M. Lifshitz
Superfluids in rotation: Landau—Lifshitz vortex sheets vs Onsager—Feynman vortices
G.E. Volovika,b aLow Temperature Laboratory, Aalto University, PO Box 15100, Aalto, FI-00076, Finland bLandau Institute for Theoretical Physics, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 119334, Russian Federation
Landau and Lifshitz's 1955 paper on vortex sheets in a rotating superfluid came out almost simultaneously with Feynman's paper on quantized vortices in superfluid 4He and was long considered incorrect. Forty years later, in what was a triumph for the former authors' theory, experiments at the Olli Lounasmaa Low Temperature Laboratory (Otaniemi, Finland) detected vortex sheets in chiral superfluid 3He-45 A in a rotating cryostat, validating Landau and Lifshitz's equation relating the vortex sheet separation and the angular velocity of rotation. This paper discusses vortex sheet configurations that have been or can be observed in superfluid 3He.
Keywords: rotating superfluid, quantized vortices, vortex sheet PACS:11.27.+d, 67.25.dk, 67.30.he (all) DOI:10.3367/UFNe.0185.201509h.0970 URL: https://ufn.ru/en/articles/2015/9/g/ Citation: Volovik G E "Superfluids in rotation: Landau—Lifshitz vortex sheets vs Onsager—Feynman vortices" Phys. Usp.58 897–905 (2015)