Ground-state cooling of a trapped ion using long-wavelength radiation
Physical review letters, 2015•APS
We demonstrate ground-state cooling of a trapped ion using radio-frequency (rf) radiation.
This is a powerful tool for the implementation of quantum operations, where rf or microwave
radiation instead of lasers is used for motional quantum state engineering. We measure a
mean phonon number of n¯= 0.13 (4) after sideband cooling, corresponding to a ground-
state occupation probability of 88 (7)%. After preparing in the vibrational ground state, we
demonstrate motional state engineering by driving Rabi oscillations between the| n= 0⟩ …
This is a powerful tool for the implementation of quantum operations, where rf or microwave
radiation instead of lasers is used for motional quantum state engineering. We measure a
mean phonon number of n¯= 0.13 (4) after sideband cooling, corresponding to a ground-
state occupation probability of 88 (7)%. After preparing in the vibrational ground state, we
demonstrate motional state engineering by driving Rabi oscillations between the| n= 0⟩ …
We demonstrate ground-state cooling of a trapped ion using radio-frequency (rf) radiation. This is a powerful tool for the implementation of quantum operations, where rf or microwave radiation instead of lasers is used for motional quantum state engineering. We measure a mean phonon number of after sideband cooling, corresponding to a ground-state occupation probability of 88(7)%. After preparing in the vibrational ground state, we demonstrate motional state engineering by driving Rabi oscillations between the and Fock states. We also use the ability to ground-state cool to accurately measure the motional heating rate and report a reduction by almost 2 orders of magnitude compared with our previously measured result, which we attribute to carefully eliminating sources of electrical noise in the system.
American Physical Society