Generation of photon-number entangled soliton pairs through interactions

Details Generation of photon-number entangled soliton pairs through interactions Generation of photon-number entangled soliton pairs through interactions

2004-05-24

arxiv.org/abs/quant-ph/0405138v1

Physical Review A 71, 013816 (2005)

Physics

Quantum Physics

4 pages

Scientific paper

10.1103/PhysRevA.71.013816

Two new simple schemes for generating macroscopic (many-photon) continuous-variable entangled states by means of continuous interactions (rather than collisions) between solitons in optical fibers are proposed. First, quantum fluctuations around two time-separated single-component temporal solitons are considered. Almost perfect correlation between the photon-number fluctuations can be achieved after propagating a certain distance, with a suitable initial separation between the solitons. The photon-number correlation can also be achieved in a pair of vectorial solitons with two polarization components. In the latter case, the photon-number-entangled pulses can be easily separated by a polarization beam splitter. These results offer novel possibilities to produce entangled sources for quantum communication and computation.

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