Speaker
Rena Zieve
(University of California, Davis)
Description
My lab has begun a superfluid helium experiment designed to exhibit glitch behavior, modeled after the Tsakadze and Tsakadze experiment from the 1970's. We levitate a bucket of helium, rotate the bucket, and let the bucket slow down while monitoring its angular velocity. We do observe glitches in which the angular velocity increases. I will discuss various effects that currently limit the precision and time resolution of our measurements. A planned redesign of the experiment should eliminate several of these issues. It should also make the experiment cheaper and more practical for acquiring large amounts of data.
Author
Rena Zieve
(University of California, Davis)