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Conditionally generating a mesoscopic superposition of N00N states

2016/07/05 by Falk Töppel, Maria V. Chekhova, Töppel, Falk +3
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph

paper · pdf · doi:10.48550/arxiv.1607.01296

7 pages

arxiv created 2016/07/05 · arxiv updated 2016/07/06

Abstract

We study the generation of superpositions of N00N states by overlapping few-photon-subtracted squeezed vacuum states and coherent states on a 50/50 beam splitter. Assuming parameters that are feasible with current technology results in output states with mean photon numbers of several tens. We show that the generated quantum states violate local realism even in the presence of considerable loss. The occurrence of strong quantum correlations for mesoscopic quantum states of light is particularly beneficial for coupling light and matter quantum systems.

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