Collective cavity quantum electrodynamics with multiple atomic levels

@article{Arnold2011CollectiveCQ,
  title={Collective cavity quantum electrodynamics with multiple atomic levels},
  author={K J Arnold and Markus P Baden and M. D. Barrett},
  journal={Physical Review A},
  year={2011},
  volume={84},
  pages={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… Expand

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References

SHOWING 1-10 OF 42 REFERENCES
Observation of the vacuum Rabi spectrum for one trapped atom.
TLDR
A new Raman scheme for cooling atomic motion along the cavity axis enables a complete spectrum to be recorded for an individual atom trapped within the cavity mode, in contrast to all previous measurements in cavity QED that have required averaging over 10(3)-10(5) atoms. Expand
Nonlinear spectroscopy in the strong-coupling regime of cavity QED
A nonlinear spectroscopic investigation of a strongly coupled atom-cavity system is presented. A two-field pump-probe experiment is employed to study nonlinear structure as the average number ofExpand
Strong atom–field coupling for Bose–Einstein condensates in an optical cavity on a chip
TLDR
An experiment combining a fibre-based cavity with atom-chip technology enables single-atom cavity quantum electrodynamics experiments with a simplified set-up and realizes the situation of many atoms in a cavity, each of which is identically and strongly coupled to the cavity mode. Expand
Cavity QED with a Bose–Einstein condensate
TLDR
A conceptually new regime of cavity QED is achieved, in which all atoms occupy a single mode of a matter-wave field and couple identically to the light field, sharing a single excitation, which opens possibilities ranging from quantum communication to a wealth of new phenomena that can be expected in the many-body physics of quantum gases with cavity-mediated interactions. Expand
Cavity QED with multiple hyperfine levels
We calculate the weak-driving transmission of a linearly polarized cavity mode strongly coupled to the D2 transition of a single cesium atom. Results are relevant to future experiments withExpand
Strong magnetic coupling of an ultracold gas to a superconducting waveguide cavity.
Placing an ensemble of 10;{6} ultracold atoms in the near field of a superconducting coplanar waveguide resonator with a quality factor Q approximately 10;{6}, one can achieve strong coupling betweenExpand
Normal-mode splitting and linewidth averaging for two-state atoms in an optical cavity.
TLDR
Observations of the spectral response of the composite system to weak external modulation reveal a coupling-induced normal-mode splitting in the radiative processes for a collection of N two-state atoms strongly coupled to the field of a high-finesse optical cavity. Expand
Few qubit atom-light interfaces with collective encoding
Samples with few hundred atoms within a few micrometer sized region of space are large enough to provide efficient cooperative absorption and emission of light, and small enough to ensure strongExpand
Enhanced spontaneous emission into the mode of a cavity QED system.
TLDR
A model that incorporates three atomic levels and two polarization modes quantitatively explains the observations of spontaneous emission into a mode of a cavity QED system under weak excitation of the orthogonally polarized mode. Expand
Probe spectrum of multilevel atoms in a damped, weakly driven two-mode cavity
We calculate the probe spectrum for multilevel atoms in a damped, weakly driven cavity supporting two degenerate orthogonally polarized modes. One mode is weakly driven by a linearly polarizedExpand
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