氦二聚体相互作用能的辐射修正。

Radiative correction to the helium dimer interaction energy.

作者信息

Pachucki Krzysztof, Komasa Jacek

机构信息

Institute of Theoretical Physics, Warsaw University, Poland.

出版信息

J Chem Phys. 2006 Feb 14;124(6):64308. doi: 10.1063/1.2166017.

DOI:10.1063/1.2166017

PMID:16483208

Abstract

The leading-order radiative correction to the helium-helium interaction energy at the equilibrium internuclear distance has been calculated for the first time. The result is -1.27(2) mK. The calculations were performed using a new technique of evaluating expectation values of singular operators in connection with the most accurate wave functions of He(2) available today-the exponentially correlated Gaussian functions.

摘要

首次计算了在平衡核间距下氦-氦相互作用能的主导阶辐射修正。结果为-1.27(2) mK。计算是使用一种新技术进行的，该技术用于结合当今可用的He(2)最精确波函数——指数相关高斯函数来评估奇异算符的期望值。