We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > On the approach to criticality of a vibrating, ...
View graph of relations

« Back

On the approach to criticality of a vibrating, macroscopic object in superfluid 3HeB

Research output: Contribution to journalJournal article


Journal publication date08/1990
JournalPhysica B: Condensed Matter
Number of pages2
Original languageEnglish


An intuitive picture of pair breaking by a vibrating wire is developed, which makes dear how quasi-particles can escape from the wire at critical velocities the Landau critical velocity νL. Assuming strong gap suppression at the wire surface, a critical velocity of is obtained, for ideal dipole flow around a wire of circular cross-section. In addition, a further transition to enhanced quasi-particle emission is predicted to occur at a velocity More generally, for non-dipole flow, and where at αl characterizes the local superflow near the surface of the wire.