Black-body radiation shift of the Ga${}^{+}$ clock transition

Abstract

The blackbody radiation shift of the Ga${}^{+}$ $4s^2{}^1{S}_0^e\to 4s4p{}^3{P}_0^o$ clock transition is computed to be $-$$0.0140\pm 0.0048$ Hz at 300 K. The small shift is consistent with the blackbody shifts of the clock transitions of other group III ions which are of a similar size. The polarizabilities of the Ga${}^{+}$ $4s^2{}^1{S}_0^e$, $4s4p{}^3{P}_0^o$, and $4s4p{}^1{P}_1^o$ states were computed using the configuration interaction method with an underlying semi-empirical core potential. A byproduct of the analysis involved large scale calculations of the low lying spectrum and oscillator strengths of the Ga${}^{2+}$ ion.

arXiv admin note: substantial text overlap with arXiv:1210.6720

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Cited by in corpus (2)

• Electric dipole polarizability of group-IIIA ions using PRCC: Large correlation effects from nonlinear terms
• Finite-field calculation of the polarizabilities and hyperpolarizabilities of Al${}^{+}$