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## Details

Material Type: | Internet resource |
---|---|

Document Type: | Internet Resource |

All Authors / Contributors: |
C I Um; S K Yoo; Thomas F George; WASHINGTON STATE UNIV PULLMAN DEPT OF CHEMISTRY. |

OCLC Number: | 227772245 |

Notes: | Technical rept. no. 60. |

Description: | 27 p. ; 23 x 29 cm. |

### Abstract:

We present the results of ground-state energies, radial distribution functions, liquid structure functions and effective interactions for a He impurity in a He background in two dimensions. The hypernetted-chain scheme for the system described by a Jastrow-type wavefunction is used, taking into account the triplet correlations and elementary diagrams up to fifth order. Solving the Euler Lagrange equations for the two-body distribution functions, which contain triplet correlation and elementary diagrams, improves the results considerably. Furthermore, as a He impurity is inserted into the He background the ground- state energy increases, but the equilibrium density decreases from 0.0350 A to the -2nd power to 0.0336 A to the -2nd power. The radial distribution function is broadened, while its maximum is lowered and shifted to the right (the direction of increasing radial distance) due to its larger zero-point energy, with therefore less localization of the He particle. The results are compared with Monte Carlo results and other studies.

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## Similar Items

### Related Subjects:(21)

- Inorganic chemistry.
- Atomic and molecular physics and spectroscopy.
- Liquid helium.
- Ground state.
- Helium.
- Impurities.
- Particles.
- Differential equations.
- Range(distance)
- Radius(measure)
- Distribution functions.
- Diagrams.
- Lagrangian functions.
- Monte carlo method.
- Equilibrium(general)
- Energy.
- Spatial distribution.
- Density.
- ENERGY LEVELS
- HYPERNETTED CHAIN APPROXIMATION
- EULER LAGRANGE EQUATIONS