Physics – Quantum Physics
Scientific paper
2004-06-05
Phys. Rev. Lett., 94:053604, 2005
Physics
Quantum Physics
4 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.94.053604
The photon statistics of the light emitted from an atomic ensemble into a single field mode of an optical cavity is investigated as a function of the number of atoms. The light is produced in a Raman transition driven by a pump laser and the cavity vacuum [M.Hennrich et al., Phys. Rev. Lett. 85, 4672 (2000)], and a recycling laser is employed to repeat this process continuously. For weak driving, a smooth transition from antibunching to bunching is found for about one intra-cavity atom. Remarkably, the bunching peak develops within the antibunching dip. For saturated driving and a growing number of atoms, the bunching amplitude decreases and the bunching duration increases, indicating the onset of Raman lasing.
Hennrich Markus
Kuhn Adrian
Rempe Gerhard
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