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Phys. Rev. B 76, 235424 (2007) [9 pages]

Density of states of helium droplets

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Klavs Hansen*
Department of Physics, Göteborg University, SE-412 96 Göteborg, Sweden

Michael D. Johnson and Vitaly V. Kresin
Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA

Received 10 September 2007; published 21 December 2007

Accurate analytical expressions for the state densities of liquid 4He droplets are derived, incorporating the ripplon and phonon degrees of freedom. The microcanonical temperature and the ripplon angular momentum level density are also evaluated. The approach is based on inversions and systematic expansions of canonical thermodynamic properties.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.76.235424
DOI:
10.1103/PhysRevB.76.235424
PACS:
67.40.Db, 67.40.Kh

*FAX: +46 (0)31 772 3496. klavs@physics.gu.se