Feedback cooling of atomic motion in cavity QED (21 pages)

@article{Steck2005FeedbackCO,
  title={Feedback cooling of atomic motion in cavity QED (21 pages)},
  author={Daniel Steck and Kurt Jacobs and Hideo Mabuchi and Salman Habib and Tanmoy Bhattacharya},
  journal={Physical Review A},
  year={2005},
  volume={74},
  pages={12322}
}
We consider the problem of controlling the motion of an atom trapped in an optical cavity using continuous feedback. In order to realize such a scheme experimentally, one must be able to perform state estimation of the atomic motion in real time. While in theory this estimate may be provided by a stochastic master equation describing the full dynamics of the observed system, integrating this equation in real time is impractical. Here we derive an approximate estimation equation for this purpose… Expand
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References

SHOWING 1-10 OF 57 REFERENCES
Quantum feedback control of atomic motion in an optical cavity.
TLDR
A feedback algorithm that can cool the atom to the ground state of the optical potential with high efficiency despite the nonlinear nature of this problem is designed. Expand
Feedback on the motion of a single atom in an optical cavity.
We demonstrate feedback on the motion of a single neutral atom trapped in the light field of a high-finesse cavity. Information on the atomic motion is obtained from the transmittance of the cavity.Expand
Collective dynamical cooling of neutral particles in a high-Q optical cavity
We show that an ensemble of two-level atoms commonly coupled to a single, driven, damped high-$Q$ cavity mode could be cooled and trapped via the correlated dynamics of cavity field and the atomicExpand
Quantum feedback in a weakly driven cavity QED system
Quantum feedback in strongly coupled systems can probe a regime where one quantum of excitation is a large fluctuation. We present theoretical and experimental studies of quantum feedback in anExpand
Semiclassical theory of cavity-assisted atom cooling
We present a systematic semiclassical model for the simulation of the dynamics of a single two-level atom strongly coupled to a driven high-finesse optical cavity. From the Fokker-Planck equation ofExpand
Feedback control of atomic motion in an optical lattice.
TLDR
A real-time feedback scheme to manipulate wave-packet oscillations of atoms in an optical lattice is demonstrated and depending on the feedback loop characteristics, amplification, damping, or an entire alteration of the wave-packed oscillations are found. Expand
Real-Time Cavity QED with Single Atoms
The combination of cold atoms and large coherent coupling enables investigations in a new regime in cavity QED with single-atom trajectories monitored in real time with high signal-to-noise ratio.Expand
Cooling of a single atom in an optical trap inside a resonator
We present detailed discussions of cooling and trapping mechanisms for an atom in an optical trap inside an optical cavity, as relevant to recent experiments. The interference pattern of cavity QEDExpand
Full observation of single-atom dynamics in cavity QED
Abstract.We report the use of broadband heterodyne spectroscopy to perform continuous measurement of the interaction energy Eint between one atom and a high-finesse optical cavity, during individualExpand
Scaling properties of cavity-enhanced atom cooling
We extend an earlier semiclassical model to describe the dissipative motion of N atoms coupled to M modes inside a coherently driven high-finesse cavity. The description includes momentum diffusionExpand
...
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2
3
4
5
...