Physics – Condensed Matter – Superconductivity
Scientific paper
2007-12-24
Physics
Condensed Matter
Superconductivity
23 pages, 7 figures
Scientific paper
In liquid helium 4, many features associated to Bose statistics have been masked by the strongly interacting nature of the liquid. As an example of these features, we examine the shear viscosity of liquid helium 4 above the lambda point. Applying the linear-response theory to Poiseuille's formula for the capillary flow, the reciprocal of the shear viscosity coefficient is considered as a transport coefficient. Using the Kramers-Kronig relation, we relate a superfluid flow in a capillary with that in a rotating bucket, and express the reciprocal of the shear viscosity coefficient in terms of the susceptibility of the system. A formula for the kinematic shear viscosity is obtained which describes the influence of Bose statistics. Using this formula, we study the gradual fall of the kinematic shear viscosity from 3.7K to the lambda point in liquid helium 4 at 1 atm.
No associations
LandOfFree
Shear viscosity of liquid helium 4 above the lambda point does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Shear viscosity of liquid helium 4 above the lambda point, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shear viscosity of liquid helium 4 above the lambda point will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-165342