Creating and probing long-range order in atomic clouds
arXiv:quant-ph/0511256 · doi:10.1002/prop.200610307
Abstract
Ultracold atoms interacting with the optical modes of a high-Q optical ring cavity can synchronize their motion. The collective behavior makes the system interesting for quantum computing applications. This paper is devoted to the study of the collective coupling. We report on the first observation of a collective dynamics and on the realization of a laser, the gain mechanism of which is based on collective atomic recoil. We show that, if the atoms are subject to a friction force, starting from an unordered distribution they spontaneously form a moving density grating. Furthermore, we demonstrate that a 1D atomic density grating can be probed via Bragg scattering. By heterodyning the Bragg-reflected light with a reference beam, we obtain detailed information on phase shifts induced by the Bragg scattering process.
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Cited by in corpus (6)
- Dynamical quantum phase transitions in the dissipative Lipkin-Meshkov-Glick model and proposed realization in optical cavity QED
- Cavity-enhanced superradiant Rayleigh scattering with ultra-cold and Bose-Einstein condensed atoms
- Collective spin systems in dispersive optical cavity QED: Quantum phase transitions and entanglement
- Collective strong coupling of cold potassium atoms in a ring cavity
- Mode-locked Bloch oscillations in a ring cavity
- Cooperative Cooling in a 1D Chain of Optically Bound Cold Atoms