Entanglement, which-way measurements, and a quantum erasure
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🪐 quant-ph
physics.pop-ph
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quantumentanglementerasurewhich-wayapproachcentralcomplementarityconcept
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We present a didactical approach to the which-way experiment and the counterintuitive effect of the quantum erasure for one-particle quantum interferences. The fundamental concept of entanglement plays a central role and highlights the complementarity between quantum interference and knowledge of which path is followed by the particle.
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