Part of the experimental setup to create Rydberg atoms

Quantum Non-Linear Optics at the single photon level with Cold Rydberg Atoms

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Description of Activities:

We investigate experimentally the creation, control, interaction and detection of single collective Rydberg excitations (so-called Rydberg polaritons) in a gas of laser cooled atoms. Rydberg atoms (atoms excited in states with high quantum number) exhibit huge dipole moments that allow strong interaction between atoms over a distance several orders of magnitude larger than normal atoms. This leads to giant non-linearities that can be used to perform quantum non-linear experiments in the single photon regime.

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