Abstract
The Fermi hypernetted chain (FHNC) method for quantum many-body calculations is investigated in some detail by means of calculations of pair correlation functions, structure functions and binding energy for liquid 3He. The results are compared with experimental results and other theoretical results obtained by the lowest-order constrained variation (LOCV) method and variational Monte Carlo (MC) calculations. The FHNC results agree quite well with MC results, but are very different from results obtained by the LOCV method. The LOCV binding energies are generally reduced by approximately 2K in the FHNC calculations.
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