Josephson Sound in Superfluid Helium.
Abstract
The research has been directed toward understanding the physics of superfluid phase slippage. The central goal is to observe and quantify acoustic fields radiated from the phase slip microaperatures. The sound field contains information about the stochastic processes driving phase slippage. The velocity dependent energy barrier for these processes has been determined. Understanding the acoustic pulses associated with phase slips has led to a demonstration of a superfluid Helium rotation sensor.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 12, 1996
- Accession Number
- ADA320580
Entities
People
- Richard Packard
Organizations
- University of California, Berkeley