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Creation of a Photonic Time-bin Qubit via Parametric Interaction of Photons in a Driven Resonant Medium

A novel method of preparing a single photon in temporally-delocalized entangled modes is proposed and analyzed. We show that two single-photon pulses propagating in a driven nonabsorbing medium with different group velocities are temporally split under parametric interaction into well-separated pulses. As a consequence, the single-photon "time-bin-entangled" states are generatedwith a programmable entanglement, which is easily controlled by driving field intensity. The experimental study of nonclassical features and nonlocality in generated states by means of balanced homodyne tomography is discussed.

preprint2009arXivOpen access

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