It is shown that the third frequency moment of the dynamic density-density correlation function χ^''(k,ω) diverges for quantum and classical systems with hard-core potentials. Some information is obtained about the leading term of the divergence in the hard-core limit.
No takes yet. Share an insight, caveat, or question.
Peter Kleban (1971) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: