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Random Delayed-Choice Quantum Eraser via Two-Photon Imaging

Giuliano Scarcelli·Yu Zhou·Yanhua Shih
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Abstract

We report on a delayed-choice quantum eraser experiment based on a two-photon imaging scheme using entangled photon pairs. After the detection of a photon which passed through a double-slit, a random delayed choice is made to erase or not erase the which-path information by the measurement of its distant entangled twin; the particle-like and wave-like behavior of the photon are then recorded simultaneously and respectively by only one set of joint detection devices. The present eraser takes advantage of two-photon imaging. The complete which-path information of a photon is transferred to its distant entangled twin through a "ghost" image. The choice is made on the Fourier transform plane of the ghost image between reading "complete information" or "partial information" of the double-path.

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Giuliano Scarcelli, Yu Zhou, Yanhua Shih. 2007-06-14. Random Delayed-Choice Quantum Eraser via Two-Photon Imaging. https://arxiv.org/abs/quant-ph/0512207

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