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A Delayed Choice Quantum Eraser

Yoon-Ho Kim, R. Yu, S. P. Kulik, Y. H. Shih, Marlan . O. Scully

quant-pharXiv:quant-ph/9903047

Abstract

This paper reports a "delayed choice quantum eraser" experiment proposed by Scully and Drühl in 1982. The experimental results demonstrated the possibility of simultaneously observing both particle-like and wave-like behavior of a quantum via quantum entanglement. The which-path or both-path information of a quantum can be erased or marked by its entangled twin even after the registration of the quantum.

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