Coherent state in the roton region of superfluid helium-4
Abstract
Coherent states in the roton region of superfluid He-4 are studied with a view to determine the transition probability from phonon to roton states. These states are formed such that they are found to be identical to those of the angular momentum states.
- Publication:
-
Unknown
- Pub Date:
- December 1988
- Bibcode:
- 1988csrr.rept.....A
- Keywords:
-
- Energy Levels;
- Helium Isotopes;
- Rotons;
- Superfluidity;
- Angular Momentum;
- Bogoliubov Theory;
- Phonons;
- Solid-State Physics