Microwave saturation of the Rydberg states of electrons on helium

Details Microwave saturation of the Rydberg states of electrons on helium Microwave saturation of the Rydberg states of electrons on helium

2002-07-31

arxiv.org/abs/cond-mat/0208001v1

Physics

Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.89.245301

We present measurements of the resonant microwave excitation of the Rydberg energy levels of surface state electrons on superfluid helium. The temperature dependent linewidth 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 high values of the ratio of the Rabi frequency to linewidth confirm this system as an excellent candidate for creating qubits.

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