Abstract
We calculate the angular and spectral distribution of atoms evaporating from superfluid helium using a kinetic-theory description of the liquid quasiparticles. Phase-space analysis indicates that the evaporation spectrum exhibits information about the single-particle properties of the liquid, but in particular does not manifest the quasiparticle density of states. The latter conclusion is in agreement with recent experimental results.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1622-1625 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 28 |
| Issue number | 25 |
| DOIs | |
| State | Published - 1972 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)