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Decay of quantized vorticity in superfluid He-4 at mK temperatures.

Research output: Contribution to journalJournal article

Published

Journal publication date11/05/2000
JournalPhysica B
Journal number1-4
Volume280
Number of pages2
Pages43-44
Original languageEnglish

Abstract

An experimental investigation of the free decay of quantized turbulence in isotopically pure superfluid 4He at mK temperatures is discussed. Vortices are created by a vibrating grid, and detected by their trapping of negative ions. Preliminary results suggest the existence of a temperature-independent vortex decay mechanism below about 70 mK.