A fluorescence study of single trapped Ytterbium ions for quantum information applications

Author: 
Date created: 
2010-08-13
Identifier: 
etd6412
Keywords: 
Ion trapping
Quantum information
Fluorescence study
Ytterbium
Abstract: 

Trapped ions are one of the most promising candidates for quantum information applications. We describe an experimental setup using a linear rf Paul trap for confining 171Yb+ ions. In particular, the required lasers and lock setups are described. One of the key requirements for qubit manipulation is achieving high fidelity state-selective detection. A well established means to accomplish this is through the use of laser fluorescence. The fluorescence theory of 171Yb+, including the effect of coherent population trapping which can suppress the fluorescence, is documented together with the counter-acting effect of a magnetic field. In addition, the fluorescence theory of 174Yb+, which has simpler atomic structure, is also described for comparison. The resonance fluorescence behaviour of both isotopes is studied experimentally as a function of magnetic field, laser polarization, power and detuning. The experimental results for both isotopes agree with theoretical models, including the effect of coherent population trapping.

Document type: 
Thesis
Rights: 
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Senior supervisor: 
Paul Haljan
Department: 
Science: Department of Physics
Thesis type: 
(Thesis) M.Sc.
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