Variational monte carlo calculations of liquid He4 with three-body correlations

K. Schmidt; M. H. Kalos; Michael A. Lee; G. V. Chester

doi:10.1103/PhysRevLett.45.573

Variational monte carlo calculations of liquid He4 with three-body correlations

K. Schmidt, M. H. Kalos, Michael A. Lee, G. V. Chester

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Abstract

The first Monte Carlo calculations explicitly employing triplet correlations in the variational wave function for the ground state of He4 are presented. A significant lowering of energy is obtained, accounting for 75% of the discrepancy between previous Jastrow variational calculations and the known exact numerical results. An improved density dependence of the energy is obtained and the pair correlation function is sharpened leading to much better agreement with the exact ground state.

Original language	English (US)
Pages (from-to)	573-576
Number of pages	4
Journal	Physical Review Letters
Volume	45
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.45.573
State	Published - 1980
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.45.573

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title = "Variational monte carlo calculations of liquid He4 with three-body correlations",

abstract = "The first Monte Carlo calculations explicitly employing triplet correlations in the variational wave function for the ground state of He4 are presented. A significant lowering of energy is obtained, accounting for 75% of the discrepancy between previous Jastrow variational calculations and the known exact numerical results. An improved density dependence of the energy is obtained and the pair correlation function is sharpened leading to much better agreement with the exact ground state.",

author = "K. Schmidt and Kalos, {M. H.} and Lee, {Michael A.} and Chester, {G. V.}",

year = "1980",

doi = "10.1103/PhysRevLett.45.573",

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AU - Schmidt, K.

AU - Kalos, M. H.

AU - Lee, Michael A.

AU - Chester, G. V.

PY - 1980

Y1 - 1980

N2 - The first Monte Carlo calculations explicitly employing triplet correlations in the variational wave function for the ground state of He4 are presented. A significant lowering of energy is obtained, accounting for 75% of the discrepancy between previous Jastrow variational calculations and the known exact numerical results. An improved density dependence of the energy is obtained and the pair correlation function is sharpened leading to much better agreement with the exact ground state.

AB - The first Monte Carlo calculations explicitly employing triplet correlations in the variational wave function for the ground state of He4 are presented. A significant lowering of energy is obtained, accounting for 75% of the discrepancy between previous Jastrow variational calculations and the known exact numerical results. An improved density dependence of the energy is obtained and the pair correlation function is sharpened leading to much better agreement with the exact ground state.

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DO - 10.1103/PhysRevLett.45.573

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Variational monte carlo calculations of liquid He4 with three-body correlations

Abstract

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