期刊
PHYSICAL REVIEW A
卷 80, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.042511
关键词
atom-ion collisions; beryllium; helium neutral atoms; hydrogen neutral atoms; lithium; polarisability; positive ions; potential energy functions; variational techniques; wave functions
资金
- NNSF of China [10674154]
- National Basic Research Program of China [2005CB724508]
- NSERC of Canada
- ACEnet
- SHARCnet
- CAS/SAFEA International Partnership Program
The polarizabilities and hyperpolarizabilities of the Be+ ion in the 2 S-2 state and the 2 P-2 state are determined. Calculations are performed using two independent methods: (i) variationally determined wave functions using Hylleraas basis set expansions and (ii) single electron calculations utilizing a frozen-core Hamiltonian. The first few parameters in the long-range interaction potential between a Be+ ion and a H, He, or Li atom, and the leading parameters of the effective potential for the high-L Rydberg states of beryllium were also computed. All the values reported are the results of calculations close to convergence. Comparisons are made with published results where available.
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