Published May 1, 1976 | Version v1
Journal article Metadata-only

Self-consistent second-order approximation for the liquid-helium-II excitation spectrum

Creators

  • 1. Physik-Department der Technischen Universitat and Max-Planck-Institut fur Physik, Munchen, Germany

Description

The equations of the self-consistent second-order approximation for the dynamical structure factor S (q, ω) of liquid helium II at zero temperature formulated by Jackson are solved by iteration. The elementary excitation spectrum obtained for wave numbers around and above the roton minimum exhibiting Pitaevskij bending is in better agreement with experiment than the original first iteration result due to Jackson and Feenberg but the description of the maxon is unsatisfactory

Additional details

Identifiers

DOI
10.1103/physrevb.13.3822;

Publishing Information

Journal Title
Physical Review B
Journal Volume
13
Journal Issue
9
Series
Phys. Rev., B.
Journal Page Range
3822-3824
ISSN
0556-2805

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7266477
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSOLUTE ZERO TEMPERATURE; ENERGY SPECTRA; HELIUM II; PHONONS; QUASI PARTICLES; ROTONS; WAVE FUNCTIONS
Descriptors DEC
EVEN-EVEN NUCLEI; FUNCTIONS; HELIUM ISOTOPES; HELIUM 4; ISOTOPES; LIGHT NUCLEI; NUCLEI; SPECTRA; STABLE ISOTOPES

Optional Information

Notes
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