Discrimination of entangled photon pair from classical photons by de Broglie wavelength
Valentin Mitev, Laurent P. Balet, Nicolas Torcheboeuf, Philippe Renevey, D. L. Boïko · Scientific Reports · 2020
Quantum optics largely relies on the fundamental concept that the diffraction and interference patterns of a multi-partite state are determined by its de Broglie wavelength. In this paper we show that this is still true for a mixed state with one sub-system being in a classical coherent state and one being in entangled state. We demonstrate the quantum-classical light discrimination using de Broglie wavelength for the states with all classical parameters being the same.