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Trapped Ion Quantum Computing

Generating a Schrödinger-cat-like state via a coherent superposition of photonic operations

arXiv
Authors: Chang-Woo Lee, Jinhyoung Lee, Hyunchul Nha, Hyunseok Jeong

Year

2012

Paper ID

8562

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

We propose an optical scheme to generate a superposition of coherent states with enhanced size adopting an interferometric setting at the single-photon level currently available in the laboratory. Our scheme employs a nondegenerate optical parametric amplifier together with two beam splitters so that the detection of single photons at the output conditionally implements the desired superposition of second-order photonic operations. We analyze our proposed scheme by considering realistic on-off photodetectors with nonideal efficiency in heralding the success of conditional events. A high-quality performance of our scheme is demonstrated in view of various criteria such as quantum fidelity, mean output energy, and measure of quantum interference.

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  • We propose an optical scheme to generate a superposition of coherent states with enhanced size adopting an interferometric setting at the single-photon level currently...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1206.3745 [2] arXiv https://arxiv.org/abs/1206.3745 [3] Publisher https://arxiv.org/abs/1206.3745

Local Citation Graph (Related-Paper Links)

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