TY - JOUR
T1 - Isotopic shift of helium melting pressure
T2 - Path integral Monte Carlo study
AU - Boninsegni, M.
AU - Pierleoni, C.
AU - Ceperley, D. M.
PY - 1994
Y1 - 1994
N2 - We compute by a path integral Monte Carlo calculation the isotopic shift of helium melting pressure in the temperature range (T > 100 K) where a discrepancy between theory and experiment has been recently reported. We use a realistic Aziz pair potential together with Bruch-McGee three-body forces for the interaction. The isotopic shift predicted in this work is in agreement with experiment; its measurement provides a good test of the interatomic potential of helium, as the isotopic shift is sensitive to the kinetic energy, which is determined by the short-range pair interaction.
AB - We compute by a path integral Monte Carlo calculation the isotopic shift of helium melting pressure in the temperature range (T > 100 K) where a discrepancy between theory and experiment has been recently reported. We use a realistic Aziz pair potential together with Bruch-McGee three-body forces for the interaction. The isotopic shift predicted in this work is in agreement with experiment; its measurement provides a good test of the interatomic potential of helium, as the isotopic shift is sensitive to the kinetic energy, which is determined by the short-range pair interaction.
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U2 - 10.1103/PhysRevLett.72.1854
DO - 10.1103/PhysRevLett.72.1854
M3 - Article
C2 - 10055721
AN - SCOPUS:0001649016
SN - 0031-9007
VL - 72
SP - 1854
EP - 1857
JO - Physical review letters
JF - Physical review letters
IS - 12
ER -