Collective cavity quantum electrodynamics with multiple atomic levels

Details Collective cavity quantum electrodynamics with multiple atomic levels Collective cavity quantum electrodynamics with multiple atomic levels

2011-05-06

arxiv.org/abs/1105.1236v2

Phys. Rev. A 84, 033843 (2011)

Physics

Quantum Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevA.84.033843

We study the transmission spectra of ultracold rubidium atoms coupled to a high-finesse optical cavity. Under weak probing with pi-polarized light, the linear response of the system is that of a collective spin with multiple levels coupled to a single mode of the cavity. By varying the atom number, we change the collective coupling of the system. We observe the change in transmission spectra when going from a regime where the collective coupling is much smaller than the separation of the atomic levels to a regime where both are of comparable size. The observations are in good agreement with a reduced model we developed for our system.

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