AB Initio Calculations for Helium-4 of Thermodynamic and Transport Properties of the Gas and the Ground State Energy of the Liquid

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Abstract
A potential energy curve for the 4He diatom obtained from a perturbation theory solution of the Schr�dinger equation is used to calculate the viscosity, thermal conductivity, self-diffusion coefficient, and second virial coefficient of gaseous 4He. In addition, the ground state energy of the zero-temperature liquid is obtained by a variation procedure using a trial wavefunction in conjunction with the Monte Carlo method. The results are in good agreement with experiment.

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