Phonon spectrum of superfluid helium

S. Havlin, M. Luban

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


The phonon excitation spectrum of superfluid 4He is calculated self-consistently employing a renormalized hydrodynamic Hamiltonian. Our theoretical results for the sound velocity are in excellent agreement with experiment. The phonon spectrum agrees with the Woods-Cowley neutron measurements.

Original languageEnglish
Pages (from-to)133-134
Number of pages2
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number2
StatePublished - 20 Nov 1972


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