Radiation-pressure cooling and optomechanical instability of a micromirror

Article Abstract:

An experiment is conducted where a micromechanical resonator is used as a mirror in a very high-finesse optical cavity and its displacements are monitored with unprecedented sensitivity. The detuning of laser frequency showed a drastic cooling of the microresonator by intracavity radiation pressure and for opposite detuning efficient heating was seen as well as radiation pressure induced instability of the resonator.

Author: Arcizet, O., Cohadon, P.-F., Briant, T., Pinard, M., Heidmann, A.
Analysis, Usage, Cavity resonators, Mechanical properties, Radiation pressure, Frequency response (Electrical engineering), Frequency response (Electronics)

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Experimental one-way quantum computing

Article Abstract:

The quantum state is characterized fully by implementing experimental four-qubit quantum state tomography. This cluster state is used to demonstrate the feasibility of one-way quantum computing through a universal set of one- and two-qubit operations.

Author: Walther, P., Aspelmeyer, M., Resch, K.J., Zeilinger, A., Rudolph, T., Weinfurter, H., Vedral, V.
United States, Molecular computing, Quantum computing

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Subjects list: Research
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