TY - JOUR
T1 - Three-Body Dispersion Coefficients for Excited Hydrogen Atoms
AU - Huang , Shi-Zhong
AU - Sun , Qiu-Feng
JO - Journal of Atomic and Molecular Sciences
VL - 4
SP - 325
EP - 333
PY - 2011
DA - 2011/02
SN - 2
DO - http://doi.org/10.4208/jams.121210.012111a
UR - https://global-sci.org/intro/article_detail/jams/8167.html
KW - hydrogen, excited state, three-body dispersion coefficient.
AB - <p style="text-align: justify;">The three-body van der Waals dispersion coefficients $Z(l_1l_2l_2)$ (up to $l_i = 5$) for the $H(1s)-H(1s)-H(1s)$ and $H(2s)-H(2s)-H(2s)$ systems are calculated by virtue of the dynamic polarizabilities at imaginary photon frequencies. The expression for the $2^l$-pole dynamic polarizabilities of atomic hydrogen is derived by application of the integration properties of the one-dimensional radial Coulomb Green&#39;s function. The results for the $H(1s)-H(1s)-H(1s)$ system are consistent with previous calculation in the literature, while the results for the $H(2s)-H(2s)-H(2s)$ systems are reported for the first time, and they are the main contribution of this work.</p>