Calculation of Stark-induced absorption on the 6s6p ^3P_1 - 6s^2 ^1S_0 transition in Hg

Abstract

We carry out relativistic many-body calculations of the Stark-induced absorption coefficient on the 254-nm $6s6p ^3P_1 (F=1/2) - 6s^2 ^1S_0$ line of ${}^{199}$Hg atom, the effect considered before by Lamoreaux and Fortson using a simple central field estimate [Phys. Rev. A {\bf 46}, 7053 (1992)]. The Stark-induced admixing of states of opposite parity opens additional M1 and E2 transition channels. We find that the resulting M1-E1 absorption dominates over E2-E1 absorption. The value of the E2-E1 absorption coefficient depends strongly on the details of treatment of the correlation problem. As a result, our numerical values differ substantially from those of the earlier central field calculation. Reliable calculation of this effect can enable a useful experimental check on the optical technique being used to search for a permanent electric dipole moment of the ${}^{199}$Hg atom.

5 pages

References in corpus (5)

• Improved limit on the permanent electric dipole moment of 199Hg
• A new limit on the permanent electric dipole moment of ^{199}Hg
• High-precision calculations of electric-dipole amplitudes for transitions between low-lying levels of Mg, Ca, and Sr
• Hyperfine structure of the metastable 3P2 state of alkaline earth atoms as an accurate probe of nuclear magnetic octupole moments
• Core-valence correlations for atoms with open shells

Cited by in corpus (3)

• Mapping out atom-wall interaction with atomic clocks
• Calculation of parity non-conservation in xenon and mercury
• Measurement of Linear Stark Interference in 199Hg