Violating Bell inequality using weak coherent states

We present an experimental investigation of two-photon interference using a continuous-wave laser. We demonstrate the violation of the Clauser–Horne–Shimony–Holt (CHSH) inequality using the phase-randomized weak coherent states from a continuous-wave laser. Our implementation serves as an approach t...

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Bibliographic Details
Published in:Optics letters 2021-12, Vol.46 (23), p.5998-6001
Main Authors: Mahdavifar, M., Hashemi Rafsanjani, S. M.
Format: Article
Language:English
Subjects:
Bell's inequality
Continuous wave lasers
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Summary:We present an experimental investigation of two-photon interference using a continuous-wave laser. We demonstrate the violation of the Clauser–Horne–Shimony–Holt (CHSH) inequality using the phase-randomized weak coherent states from a continuous-wave laser. Our implementation serves as an approach to reveal the quantum nature of a state that is considered to be a classical state.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.441499