Exploration of the magnetic-field-induced $5s5p$~$^3P_0$~-~$5s^2$~$^1S_0$ forbidden transition in bosonic Sr atom

TL;DR

This paper investigates how an external magnetic field influences the forbidden transition in bosonic Sr atoms through experimental measurements and theoretical calculations, enhancing understanding of magnetic effects on atomic transitions in ultra-cold systems.

Contribution

It provides combined experimental and theoretical analysis of magnetic-field-induced forbidden transitions in bosonic Sr, with improved accuracy in transition rate evaluation.

Findings

Good agreement between experimental data and theoretical calculations

Magnetic field significantly affects the forbidden transition rate

Study enhances understanding of ultra-cold atomic interactions under magnetic fields

Abstract

We presented experimental and theoretical studies of the effect of an external magnetic field on the forbidden transition in the bosonic Sr atom. In our ultra-cold atomic system, the excitation fraction of $5s5p$~$^3P_0$~-~$5s^2$~$^1S_0$ forbidden transition was measured under the circumstance of the different magnetic field strengths by using the normalized detection method. Based on perturbation theory, we calculated the magnetic-field-induced $5s5p$~$^3P_0$~-~$5s^2$~$^1S_0$ transition rate. The excitation fraction as a function of the magnetic field strength was deduced according to the calculated results. A good agreement was found between the experimental measurements and the calculations. This study should be helpful in evaluating the magnetic field effects on the forbidden transition rate with higher accuracy. Moreover, it can help to understand the ultra-cold atomic interaction in the external magnetic field.