Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 12723-12731 |
| Number of pages | 9 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 76 |
| Issue number | 1 |
| Publication status | Published - 2007 |
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Accurate long-range coefficients for two excited like isotope He atoms : He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). / Zhang, Jun-Yi; YAN, Z; Vrinceanu, D; BABB, J; Sadeghpour, H.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 76, No. 1, 2007, p. 12723-12731.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Accurate long-range coefficients for two excited like isotope He atoms
T2 - He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3)
AU - Zhang, Jun-Yi
AU - YAN, Z
AU - Vrinceanu, D
AU - BABB, J
AU - Sadeghpour, H
PY - 2007
Y1 - 2007
N2 - A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.
AB - A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.
KW - Atomic physics
KW - Isotopes
KW - Molecular interactions
KW - Van der Waals forces
KW - Wave functions
KW - Finite nuclear mass effects
KW - Molecular symmetries
KW - Variational wave functions
KW - Helium
M3 - Article
VL - 76
SP - 12723
EP - 12731
JO - Physical Review A
JF - Physical Review A
SN - 1050-2947
IS - 1
ER -