Physics – Quantum Physics
Scientific paper
2012-04-02
Physics
Quantum Physics
6 pages, 4 figures
Scientific paper
New technologies providing tight focusing lens and mirrors with large numerical apertures and electro-optic modulation of single photons are now available for the investigation of photon-atom interactions without a cavity. From the theoretical side, new models must be developed which take into account the intrinsic open system aspect of the problem as well as details about atomic relative positions and temporal (spectral) features of the pulses. In this paper, we investigate the generation of nonclassical correlations between two atoms in response to their interaction with a quantized pulse containing just one single photon. For this purpose, we develop a general theoretical approach which allows us to find the equations of motion for single- and two-body atomic operators from which we obtained the system density operator. We show that one single photon is capable of generating substantial entanglement between the atoms, and we analyze the dependence of these correlations on atomic relative positions and spectral features of the pulse.
Santos Joao Paulo
Semião Fernando L.
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