Evaluation of blackbody radiation shift with temperature associated fractional uncertainty at 10E-18 level for 40Ca+ ion optical clock

Ping Zhang, Jian Cao, Hua-lin Shu +7

In this paper, blackbody radiation (BBR) temperature rise seen by the ${}^{40}$Ca${}^{+}$ ion confined in a miniature Paul trap and its uncertainty have been evaluated via finite-element…