769 citations · 921 across the 10 of their papers we have counts for
4 papers · 1 filter
Non-equilibrium phase transition in a spin-1 Dicke model
Zhang Zhiqiang, Chern Hui Lee, Ravi Kumar +4
We realize a spin-1 Dicke model using magnetic sub-levels of the lowest F=1 hyperfine level of Rb atoms confined to a high finesse cavity. We study this system under conditi…
Suppression of clock shifts at field-insensitive transitions
Kyle J. Arnold, M. D. Barrett
We show that it is possible to significantly reduce quadrupole and tensor polarizability shifts of a clock transition by operating at a judiciously chosen field-insensitive point.…
Developing a field independent frequency reference by averaging over transitions to multiple hyperfine levels
M. D. Barrett
We show that by averaging over transitions to multiple hyperfine levels, quadrupole shifts and dominant Zeeman effects exactly cancel whenever the nuclear spin, I, is at least as l…
Micromotion in trapped atom-ion systems
Le Huy Nguyen, Amir Kalev, Murray D. Barrett +1
We examine the validity of the harmonic approximation, where the radio-frequency ion trap is treated as a harmonic trap, in the problem regarding the controlled collision of a trap…