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A Study of Various Semi-Empirical Potential for the Bogolyubov Quasi Particle Spectrum in Bose Liquid

S. Die, M. P Jha and L. K. Mishra

Using the theoretical model of E. A. Pashitskii et al., various semi-empirical potentials for interaction of helium atoms in real space have been studied. Theoretical evaluation of the Bogolyubov quasi particle spectrum in Bose liquid has been done and results were compared with inelastic neutron scattering experiments. Our theoretical results are in good match with the experimental data.