Jian Cao

collaborators

3 papers

physics.atom-ph2016

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…

physics.atom-ph2016

A transportable 40Ca+ single-ion clock with $7.7 \times 1 0^{- 17}$ systematic uncertainty

Jian Cao, Ping Zhang, Junjuan Shang +6

A transportable optical clock refer to the $4 s^{2} S_{1/2} - 3 d^{2} D_{5/2}$ electric quadrupole transition at 729 nm of single $^{40} C a^{+}$ trapped in mini Paul trap has been developed. Th…

physics.atom-ph2016

Sympathetic cooling of $^{40} Ca^{+}$ - $^{27} Al^{+}$ ion pair crystal in a linear Paul trap

Jun-juan Shang, Kai-feng Cui, Jian Cao +3

The $^{27}$ Al $^{+}$ ion optical clock is one of the most attractive optical clocks due to its own advantages, such as low blackbody radiation shift at room temperature and insensitiv…

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

A transportable 40Ca+ single-ion clock with 7.7×10−17 systematic uncertainty

Sympathetic cooling of 40Ca+ - 27Al+ ion pair crystal in a linear Paul trap

A transportable 40Ca+ single-ion clock with $7.7 \times 1 0^{- 17}$ systematic uncertainty

Sympathetic cooling of $^{40} Ca^{+}$ - $^{27} Al^{+}$ ion pair crystal in a linear Paul trap