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标题：A high-N00N output of harmonically driven cavity QED
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作者：Yusef Maleki ; Aleksei M. Zheltikov
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2019
卷号：9
期号：1
页码：1-7
DOI：10.1038/s41598-019-49465-7
出版社：Springer Nature
摘要：A harmonically driven cavity QED system consisting of two cavities and a two-level qubit is shown to enable the generation of a vast class of maximally entangled states suitable for measurements with a Heisenberg-limit precision. As one of its modalities, this system can serve as a quantum beam splitter, converting an N〉 ⊗ 0〉 input into a maximally entangled N00N state ( N〉 ⊗ 0〉 + 0〉 ⊗ N〉)/[Formula: see text] at its output. A network of such quantum beam splitters is shown to provide a source of multimode N00N-type entanglement.