Employing polarization modes of a photon, we propose two theoretical proposals to exhibit the wave–particle duality of the photon with the assistance of weak cross-Kerr nonlinearities. The first proposal is a classical controlled delayed-choice experiment (that is, Wheeler’s delayed-choice experiment), where we can observe selectively wave property or particle property of the photon relying on the experimenter’s selection, whereas the second proposal is a quantum controlled delayed-choice experiment, by which the mixture phenomenon of a wave and a particle will be exhibited. Both of them can be realized with near-unity probability and embody the charming characteristics of quantum mechanics. The employment of the mature techniques and simple operations (e.g., Homodyne measurement, classical feed forward, and single-photon transformations) provides the feasibility of the delayed-choice experiment proposals presented here.
Quantum Information Processing – Springer Journals
Published: Mar 24, 2017
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