Evaporation from Superfluid Helium

Milton W. Cole

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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.


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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