The 1/omega sum rules are derived for two-component uniform many-body systems. The density fluctuations are quantized for the case when both components satisfy Bose statistics. Information about the long wavelength behavior of the liquid-structure functions is deduced from both the sum rules and the zero-point density fluctuations.
机构:
Univ Montpellier I, EA Movement Hlth 2991, Euromov, F-34090 Montpellier, FranceUniv Montpellier I, EA Movement Hlth 2991, Euromov, F-34090 Montpellier, France