Generating optical nonlinearity using trapped atoms

Details Generating optical nonlinearity using trapped atoms Generating optical nonlinearity using trapped atoms

2003-05-28

arxiv.org/abs/quant-ph/0305167v1

Physics

Quantum Physics

Substantially extended from quant-ph/0208157

Scientific paper

We describe a scheme for producing an optical nonlinearity using an interaction with one or more ancilla two-level atomic systems. The nonlinearity, which can be implemented using high efficiency fluorescence shelving measurements, together with general linear transformations is sufficient for simulating arbitrary Hamiltonian evolution on a Fock state qudit. We give two examples of the application of this nonlinearity, one for the creation of nonlinear phase shifts on optical fields as required in single photon quantum computation schemes, and the other for the preparation of optical Schrodinger cat states.

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