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arXiv · 1907.01718

Turning off quantum duality

X. -F. Qian·K. Konthasinghe·K. Manikandan·D. Spiecker·A. N. Vamivakas·J. H. Eberly
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Abstract

We provide the first experimental confirmation of a three-way quantum coherence identity possessed by single pure-state photons. Our experimental results demonstrate that traditional wave-particle duality is specifically limited by this identity. As a new consequence, we show that quantum duality itself can be amplified, attenuated, or turned completely off. In the Young double-slit context this quantum coherence identity is found to be directly relevant, and it supplies a rare quantitative backup for one of Bohr's philosophical pronouncements.

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X. -F. Qian, K. Konthasinghe, K. Manikandan, D. Spiecker, A. N. Vamivakas, J. H. Eberly. 2019-07-03. Turning off quantum duality. https://doi.org/10.1103/physrevresearch.2.012016

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