Generating superposition and entanglement of squeezed vacuum states

Details Generating superposition and entanglement of squeezed vacuum states Generating superposition and entanglement of squeezed vacuum states

2006-04-18

arxiv.org/abs/quant-ph/0604128v1

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

We propose a scheme for generating the superposition and the entanglement of squeezed vacuum states of electromagnetical fields. The scheme involves single-photon source, single photon detector, and cross Kerr nonlinearity. The Kerr nonlinearity required for generating the superposition of squeezed vacuum states is 1/2 of that required for generating the superposition of coherent states. The proposal can also be extended to generate the entanglement states between two coherent states and that between one coherent state and one squeezed vacuum state.

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