Dynamics of the interactions of rotons with quantized vortices in helium II
- 9 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (2) , 187-190
- https://doi.org/10.1103/physrevlett.65.187
Abstract
We consider the theory of mutual friction in helium II which accounts for the coupling of the normal and superfluid flows by means of quantized vortices. Numerical simulations of roton-vortex interactions suggest a simple new expression which accounts for most mutual friction at low temperatures. By carefully separating that which can be known at the present time from that which cannot be known until the structure of quantized vortices is understood, we are able to account for mutual friction in a semiempirical way at all temperatures and pressures.This publication has 13 references indexed in Scilit:
- Calculations of mutual friction in4HeJournal of Physics C: Solid State Physics, 1987
- Calculation of frequency- and velocity-dependent mutual friction parameters in helium IIJournal of Low Temperature Physics, 1987
- Friction on quantized vortices in helium II. A reviewJournal of Low Temperature Physics, 1983
- The mutual friction parameters in liquid helium II: A revised calculationJournal of Physics C: Solid State Physics, 1983
- Mutual friction and vortex motion near the superfluid transitionJournal of Low Temperature Physics, 1983
- Calculation of the mutual friction parameters in liquid helium II and the nature of the vortex coreJournal of Physics C: Solid State Physics, 1981
- Scattering and binding of rotonsJournal of Low Temperature Physics, 1974
- Classical Model of the Roton-Quantized Vortex Interaction with an Application to Rotating Liquid He IIPhysics of Fluids, 1971
- Model for the Core of a Quantized Vortex Line in Helium IIPhysical Review Letters, 1968
- Quantized Vortex Rings in Superfluid HeliumPhysical Review B, 1964