We report a further reduction in the statistical error for “exact” quantum Monte Carlo calculations for the potential energy of interaction of two helium atoms. For the equilibrium internuclear distance of 5.6 bohr, the calculated electronic energy is and the corresponding well depth is
REFERENCES
1.
J. B.
Anderson
, C. A.
Traynor
, and B. M.
Boghosian
, J. Chem. Phys.
99
, 345
(1993
).2.
3.
4.
5.
6.
7.
8.
M. P.
Hodges
and R. J.
Wheatley
, J. Mol. Struct.: THEOCHEM
591
, 67
(2002
).9.
A.
Hesselmann
and G.
Jansen
, Phys. Chem. Chem. Phys.
5
, 5010
(2003
).10.
M.
Jeziorska
, R.
Bukowski
, W.
Cencek
, M.
Jaszunski
, B.
Jeziorski
, and K.
Szalewicz
, Collect. Czech. Chem. Commun.
68
, 463
(2003
).11.
12.
13.
R.
Specchio
, A.
Famulari
, and M.
Raimondi
, J. Mol. Struct.: THEOCHEM
549
, 77
(2001
).14.
E. F.
Laschuk
, M. M.
Martins
, and S.
Evangelisti
, Int. J. Quantum Chem.
95
, 303
(2003
).15.
T. J.
Giese
, V. M.
Audette
, and D. M.
York
, J. Chem. Phys.
119
, 2618
(2003
).16.
17.
18.
19.
20.
21.
22.
F.
Luo
, C. F.
Giese
, and W. R.
Gentry
, J. Chem. Phys.
104
, 1151
(1996
).23.
R. E.
Grisenti
, W.
Schöllkopf
, J. P.
Toennies
, G. C.
Hegerfeldt
, T.
Köhler
, and M.
Stoll
, Phys. Rev. Lett.
85
, 2284
(2000
).
This content is only available via PDF.
© 2004 American Institute of Physics.
2004
American Institute of Physics
