Frequency shift of hyperfine transitions due to blackbody radiation
E. J. Angstmann, V. A. Dzuba, V. V. Flambaum
Abstract
We have performed calculations of the size of the frequency shift induced by a static electric field on the clock transition frequencies of the hyperfine splitting in Yb+, Rb, Cs, Ba+, and Hg+. The calculations are used to find the frequency shifts due to blackbody radiation which are needed for accurate frequency measurements and improvements of the limits on variation of the fine structure constant, alpha. Our result for Cs (delta nu E2=-2.26 times 10-10Hz/(V/m)2) is in good agreement with early measurements and ab initio calculations. We present arguments against recent claims that the actual value might be smaller. The difference (approx 10%) is due to the contribution of the continuum spectrum in the sum over intermediate states.
Create a lesson
Related papers
Influence of Many-Body Dipole-Dipole Interactions on Excitation Transfer in a Dense Gas
A. A. Bobrov, S. A. Saakyan, B. B. Zelener et al.
Beyond-EUV spectrum of highly-charged gadolinium
M. L. Reitsma, J. Sheil, O. O. Versolato et al.
Measuring the Sr+ 5s1/2 Landé g-factor Using Singlet-Triplet Oscillations in a Circular Rydberg State of Strontium
Baptiste Muraz, Mathis Pepin, Corentin Guimard et al.
Robust watt-level continuous-wave deep-ultraviolet lasers near 230 nm
J. Cai, M. Stoepper, P. Agarwal et al.
High-density Optical Quantum Sensors with Pulsed Probe Read-out for Correlated Spin-Noise Reduction
Igor Savukov, Young Jin Kim
Measurement of the O- Photodetachment cross-section in the electrostatic storage ring FLSR
Oliver Forstner, Thorben Niemeyer, Andrey I. Bondarev et al.