Single-atom lasing induced atomic self trapping

Details Single-atom lasing induced atomic self trapping Single-atom lasing induced atomic self trapping

2003-12-22

arxiv.org/abs/quant-ph/0312181v1

Physics

Quantum Physics

4 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.93.063002

We study motion and field dynamics of a single-atom laser consisting of a single incoherently pumped free atom moving in an optical high-{\it Q} resonator. For sufficient pumping, the system starts lasing whenever the atom is close to a field antinode. If the field mode eigenfrequency is larger than the atomic transition frequency, the generated laser light attracts the atom to the field antinode and cools its motion. Using quantum Monte Carlo wave function simulations, we investigate this coupled atom-field dynamics including photon recoil and cavity decay. In the regime of strong coupling, the generated field shows strong nonclassical features like photon antibunching, and the atom is spatially confined and cooled to sub-Doppler temperatures.

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