Phonon dispersion in liquid He II
Journal Article
·
· Phys. Rev., B, v. 12, no. 9, pp. 3745-3748
The eigenfunctions of the linearized collision operator for the phonons in superfluid helium are determined numerically. The calculated sound velocity is in quantitative agreement with experimental data in a wide frequency and temperature range if an anomalous dispersion $gamma$=-10$sup 38$ in cgs units is used. (auth)
- Research Organization:
- Schweizerische Institut fuer Nuklearforschung, CH-5234 Villigen, Switzerland
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-010349
- OSTI ID:
- 4145883
- Journal Information:
- Phys. Rev., B, v. 12, no. 9, pp. 3745-3748, Journal Name: Phys. Rev., B, v. 12, no. 9, pp. 3745-3748; ISSN PLRBA
- Country of Publication:
- United States
- Language:
- English
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