Microwave saturation and the Rabi frequency of the Rydberg states of electrons on helium

We present measurements of the resonant microwave excitation of the Rydberg energy levels of surface state electrons on superfluid helium. The temperature dependent line width γ( T) agrees well with theoretical predictions and is very small below 300 mK . Absorption saturation and power broadening w...

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Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2003-05, Vol.18 (1), p.186-187
Main Authors: Collin, E., Bailey, W., Fozooni, P., Frayne, P.G., Glasson, P., Harrabi, K., Lea, M.J., Papageorgiou, G.
Format: Article
Language:English
Subjects:
Electrons on helium
Microwave excitation
Quantum computing
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Summary:We present measurements of the resonant microwave excitation of the Rydberg energy levels of surface state electrons on superfluid helium. The temperature dependent line width γ( T) agrees well with theoretical predictions and is very small below 300 mK . Absorption saturation and power broadening were observed as the fraction of electrons in the first excited state was increased to 0.49, close to the thermal excitation limit of 0.5. The Rabi frequency was determined as a function of microwave power. The experiments show that the conditions are met for the use of these states in an electronic qubit.
ISSN:1386-9477
1873-1759
DOI:10.1016/S1386-9477(02)01088-3