D. Begue et al., Dynamic scalar and tensor polarizabilities for the low-lying 2(1)p(o) and 2(3)P(o) states of Be, J PHYS B, 31(23), 1998, pp. 5077-5084
Citations number
43
Categorie Soggetti
Physics
Journal title
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Static and dynamic scalar alpha(0)(omega) and tensor Delta alpha(omega) dip
ole polarizabilities at real frequencies have been calculated for the two f
irst excited states 2 P-1(o) and 2 P-3(o) of Be using the time-dependent ga
uge-invariant method (TDGI). The results are compared with the previous acc
urate theoretical data obtained by Themelis and Nicolaides at the static le
vel. The dynamic results proposed here are new and complete our results pub
lished previously concerning the 3 S-1 and 3 S-3 states. In all cases dynam
ic components are calculated for dipole polarizability up to the first reso
nances ((h) over bar omega = E-2 (1Po-2 1S) and (h) over bar omega = E2 3Po
-1D) and ((h) over bar omega = E2 3Po-3S and (h) over bar omega = E2 3Po-3D
) for the singlet and the triplet states, respectively.