5 papers
Coupling a single atomic quantum bit to a high finesse optical cavity
A. B. Mundt, A. Kreuter, C. Becher +4
The quadrupole S -- D optical transition of a single trapped Ca ion, well suited for encoding a quantum bit of information, is coherently coupled to the standin…
Experiments towards quantum information with trapped Calcium ions
D. Leibfried, C. Roos, P. Barton +8
Ground state cooling and coherent manipulation of ions in an rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. With resolved sideband coolin…
Experimental demonstration of ground state laser cooling with electromagnetically induced transparency
C. F. Roos, D. Leibfried, A. Mundt +3
Ground state laser cooling of a single trapped ion is achieved using a technique which tailors the absorption profile for the cooling laser by exploiting electromagnetically induce…
Speed of ion trap quantum information processors
A. Steane, C. F. Roos, D. Stevens +4
We investigate theoretically the speed limit of quantum gate operations for ion trap quantum information processors. The proposed methods use laser pulses for quantum gates which e…
Ground state cooling, quantum state engineering and study of decoherence of ions in Paul traps
F. Schmidt-Kaler, Ch. Roos, H. C. Naegerl +12
We investigate single ions of in Paul traps for quantum information processing. Superpositions of the S electronic ground state and the metastable D sta…