A single $^{88}\mathrm{Sr}^{+}$ ion has been cooled to the zero point of its axial motion in a radio frequency endcap trap. A ground-state occupation probability of 98.6(8)% was achieved using resolved sideband laser cooling on the $674\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ $^{2}S_{1∕2}\text{\ensuremath{-}}^{2}D_{5∕2}$ quadrupole transition. The ion's heating rate was measured to be 0.054(4) quanta/ms, implying a spectral density of electric field noise comparable to the other reported values, summarized in the paper by Deslauriers et al. [Phys. Rev. A 70, 043048 (2004)]. Low heating rates were only observed using a trap that had minimal exposure to atomic flux.A single $^{88}\mathrm{Sr}^{+}$ ion has been cooled to the zero point of its axial motion in a radio frequency endcap trap. A ground-state occupation probability of 98.6(8)% was achieved using resolved sideband laser cooling on the $674\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ $^{2}S_{1∕2}\text{\ensuremath{-}}^{2}D_{5∕2}$ quadrupole transition. The ion's heating rate was measured to be 0.054(4) quanta/ms, implying a spectral density of electric field noise comparable to the other reported values, summarized in the paper by Deslauriers et al. [Phys. Rev. A 70, 043048 (2004)]. Low heating rates were only observed using a trap that had minimal exposure to atomic flux.

Physical Review AJun 28, 200716 citations

Zero-point cooling and low heating of trapped Cd+111 ions

Louis Deslauriers, P. C. Haljan, P. J. Lee +4 more

We report on ground-state laser cooling of single $^{111}\mathrm{Cd}^{+}$ ions confined in radio-frequency (Paul) traps. Heating rates of trapped ion motion are measured for two different trapping geometries and electrode materials, where no effort was made to shield the electrodes from the atomic $\mathrm{Cd}$ source. The low measured heating rates suggest that trapped $^{111}\mathrm{Cd}^{+}$ ions may be well suited for experiments involving quantum control of atomic motion, including applications in quantum information science.We report on ground-state laser cooling of single $^{111}\mathrm{Cd}^{+}$ ions confined in radio-frequency (Paul) traps. Heating rates of trapped ion motion are measured for two different trapping geometries and electrode materials, where no effort was made to shield the electrodes from the atomic $\mathrm{Cd}$ source. The low measured heating rates suggest that trapped $^{111}\mathrm{Cd}^{+}$ ions may be well suited for experiments involving quantum control of atomic motion, including applications in quantum information science.

arXiv:quant-ph/0404142Physical Review AOct 18, 2004112 citations

Chapter 6 Trapping and Cooling Ions

Laurent Hilico, Martina Knoop

EDP Sciences eBooksDec 31, 20220 citations

Chapter 6 Trapping and Cooling Ions

Laurent Hilico, Martina Knoop

EDP Sciences eBooksDec 31, 20220 citations

A single

^{88}\mathrm{Sr}^{+}

ion has been cooled to the zero point of its axial motion in a radio frequency endcap trap. A ground-state occupation probability of 98.6(8)% was achieved using resolved sideband laser cooling on the

674\phantom{\rule{0.3em}{0ex}}\mathrm{nm}

$^{2}S_{1∕2}\text{\ensuremath{-}}^{2}D_{5∕2}$ quadrupole transition. The ion's heating rate was measured to be 0.054(4) quanta/ms, implying a spectral density of electric field noise comparable to the other reported values, summarized in the paper by Deslauriers et al. [Phys. Rev. A 70, 043048 (2004)]. Low heating rates were only observed using a trap that had minimal exposure to atomic flux.

We report on ground-state laser cooling of single

^{111}\mathrm{Cd}^{+}

ions confined in radio-frequency (Paul) traps. Heating rates of trapped ion motion are measured for two different trapping geometries and electrode materials, where no effort was made to shield the electrodes from the atomic

\mathrm{Cd}

source. The low measured heating rates suggest that trapped

^{111}\mathrm{Cd}^{+}

ions may be well suited for experiments involving quantum control of atomic motion, including applications in quantum information science.