Practical schemes of detecting entanglement with a single Hong-Ou-Mandel interferometer via quantum 2-design

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In this work, we show that measurement in quantum 2-design, such as mutually unbiased bases (MUBs) or symmetric, informationally complete states (SICs), improves the capability of detecting entangled states both theoretically and experimentally. On the theoretical side, we show that measurement in quantum 2-design can detect entangled states twice compared to entanglement witnesses. On the implementation side, we present the scheme of entanglement detection with two detectors only of a Hong-Ou-Mandel interferometer. The experimental scheme applies single-copy level measurement followed by post-processing of measurement outcomes, which is feasible with current technologies.
Publisher
SPIE
Issue Date
2017-08
Language
English
Citation

Quantum Communications and Quantum Imaging XV, v.10409

ISSN
0277-786X
DOI
10.1117/12.2273120
URI
http://hdl.handle.net/10203/244340
Appears in Collection
EE-Journal Papers(저널논문)
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