Delayed "Choice'' Quantum Eraser

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PhysRevLett.84.1.pdf (173.89 KB)

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https://link.aps.org/doi/10.1103/PhysRevLett.84.1

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https://doi.org/10.1103/PhysRevLett.84.1
 http://hdl.handle.net/11603/39889

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Date

2000-01-03

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journal articles
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Citation of Original Publication

Kim, Yoon-Ho, Rong Yu, Sergei P. Kulik, Yanhua Shih, and Marlan O. Scully. ‘Delayed "Choice’’ Quantum Eraser’. Physical Review Letters 84, no. 1 (2000): 1–5. https://doi.org/10.1103/PhysRevLett.84.1.

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©2000 American Physical Society

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UMBC Quantum Optics Laboratory

Abstract

We report a delayed “choice” quantum eraser experiment of the type proposed by Scully and Drühl (where the “choice” is made randomly by a photon at a beam splitter). The experimental results demonstrate the possibility of delayed determination of particlelike or wavelike behavior via quantum entanglement. The which-path or both-path information of a quantum can be marked or erased by its entangled twin even after the registration of the quantum.