Path-integral computation of the low-temperature properties of liquid<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>

Abstract

Discretized path-integral computations of the energy and radial distribution function of $^{4}\mathrm{He}$ in good accord with experiment are presented for temperatures down to 1 K at saturated vapor pressure. Results for the single-particle density matrix, momentum distribution, and condensate fraction agree at the lowest temperature with previous ground-state calculations.