Blackbody radiation shift of B clock transition
arXiv:1210.6720 · doi:10.1103/PhysRevA.86.052505
Abstract
A calculation of the blackbody radiation shift of the B clock transition is performed. The polarizabilities of the B S, P, and P states are computed using the configuration interaction method with an underlying semi-empirical core potential. The recommended dipole polarizabilities are 9.64(3) , 7.78(3) and 16.55(5) respectively. The derived frequency shift for the S P transition at 300 K is 0.0160(5) Hz. The dipole polarizabilities agree with an earlier relativistic calculation (Safronova {\em et al.} Phys. Rev. Lett. {\bf 107} 143006 (2011)) to better than 0.2%. Quadrupole and octupole polarizabilities and non-adiabatic multipole polarizabilities are also reported.