Electrodynamique des systèmes simples - Lab. Kastler Brossel
Cavity Quantum Electro Dynamics

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Dispositif expérimental.

Cette section décrit brièvement le dispositif expérimental.


The superconducting cavity and the control of the blackbody radiation field require a very low temperature environment (below 1K). We achieve this in a $^4$He-$^3$He cryostat. This picture (...)

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Un dispositif à deux cavités

The set-up has been designed to hold two cavities and three Ramsey zones. This configuration is ideal for the generation of non-local mesoscopic states or for quantum information experiments. At (...)

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Contrôle des champs parasites

To preserve the atomic coherences, it is essential to control the stray electric and magnetic fields experienced by the atoms. The experimental core must also be screened from the room (...)

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Technologie micro-onde

The generation and control of microwave fields plays an essential role in our experiments, both for cavity characterization and for the operation of the Ramsey interferometer. We have developed (...)

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Contrôle informatique

The experiments may involve comples sequences, with a few thousand atomic samples, each undergoing selective state transformations in the Ramsey zones and in the cavity. The whole experiment is (...)

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CNRS ENS Departement de Physique ENS UPMC CdF Univ. Evry