Keller, M, Lange, B, Hayasaka, K, Lange, W and Walther, H (2003) Deterministic cavity quantum electrodynamics with trapped ions. Journal of Physics B: Atomic, Molecular and Optical Physics, 36 (3). pp. 613-622.

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Abstract

We have employed radio-frequency trapping to localize a single calcium-40 ion in a high-finesse optical cavity. By means of laser Doppler cooling, the position spread of the ion's wavefunction along the cavity axis was reduced to 42 nm, a fraction of the resonance wavelength of ionized calcium (=397nm). By controlling the position of the ion in the optical field, continuous and completely deterministic coupling of ion and field was realized. The precise three-dimensional location of the ion in the cavity was measured by observing the fluorescent light emitted upon excitation in the cavity field. The single-ion system is ideally suited to implement cavity quantum electrodynamics under cw conditions. To this end we operate the cavity on the D_3/2 - P_1/2 transition of calcium-40 (=866nm). Applications include the controlled generation of single-photon pulses with high efficiency and two-ion quantum gates.

Item Type:	Article
Additional Information:	By controlling the position of a single calcium ion in an optical resonator, a system is realized which is ideally suited to implement cavity quantum electrodynamics under continuous wave conditions. Applications include the controlled generation of single-photon pulses with high efficiency and two-ion quantum gates. Contribution: senior researcher / team leader.
Schools and Departments:	School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User:	Matthias Keller
Date Deposited:	06 Feb 2012 20:14
Last Modified:	30 Mar 2012 09:54
URI:	http://srodev.sussex.ac.uk/id/eprint/24904

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