Journal Article Classical reconstruction of interference patterns of position-wave-vector-entangled photon pairs by the time-reversal method

Ogawa, Kazuhisa  ,  Kobayashi, Hirokazu  ,  Tomita, Akihisa

97 ( 2 )  , p.023823 , 2018-02-13 , American Physical Society (APS)
The quantum interference of entangled photons forms a key phenomenon underlying various quantum-optical technologies. It is known that the quantum interference patterns of entangled photon pairs can be reconstructed classically by the time-reversal method; however, the time-reversal method has been applied only to time-frequency-entangled two-photon systems in previous experiments. Here, we apply the time-reversal method to the position-wave-vector-entangled two-photon systems: the two-photon Young interferometer and the two-photon beam focusing system. We experimentally demonstrate that the time-reversed systems classically reconstruct the same interference patterns as the position-wave-vector-entangled two-photon systems.

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