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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, Zong-Chao, Vrinceanu, D., Babb, James F. and Sadeghpour, H. R. (2007). 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). Physical Review A (Atomic, Molecular, and Optical Physics),76(1):012723-1-012731-9.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 5 times in Scopus Article | Citations

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Title 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)
Author Zhang, Jun-Yi
Yan, Zong-Chao
Vrinceanu, D.
Babb, James F.
Sadeghpour, H. R.
Journal Name Physical Review A (Atomic, Molecular, and Optical Physics)
Publication Date 2007
Volume Number 76
Issue Number 1
ISSN 1094-1622   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-34547593885
Start Page 012723-1
End Page 012731-9
Total Pages 9
Place of Publication College Park, United States
Publisher American Physical Society
Field of Research 0202 - Atomic, Molecular, Nuclear, Particle and Plasma Physics
0204 - Condensed Matter Physics
0205 - Optical Physics
HERDC Category C1 - Journal Article (DEST)
Abstract 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 Δ, Π, and Σ, arising from the following interactions: He(2P1)–He(2P1), He(2P1)–He(2P3), and He(2P3)–He(2P3). 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.

DOI http://dx.doi.org/10.1103/PhysRevA.76.012723   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes Copyright by The American Physical Society


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