Quantum properties of the codirectional three-mode Kerr nonlinear coupler

Details Quantum properties of the codirectional three-mode Kerr nonlinear coupler Quantum properties of the codirectional three-mode Kerr nonlinear coupler

2009-07-30

arxiv.org/abs/0907.5291v1

Eur. Phys. J. D 33 (2005) 453-463

Physics

Quantum Physics

23 pages, 6 figures

Scientific paper

We investigate the quantum properties for the codirectional three-mode Kerr nonlinear coupler. We investigate single-, two- and three-mode quadrature squeezing, Wigner function and purity. We prove that this device can provide richer nonclassical effects than those produced by the conventional coupler, i.e. the two-mode Kerr coupler. We show that it can provide squeezing and the quadrature squeezing exhibiting leaf-revival-collapse phenomenon in dependence on the values of the interaction parameters. In contrast to the conventional Kerr coupler two different forms of cat states can be simultaneously generated in the waveguides. We deduce conditions required for the complete disentanglement between the components of the system.

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