Measurement of the photonic de Broglie wavelength of parametric down-converted photons using a Mach-Zehnder interferometer

摘要

We propose and demonstrate the measurement of photonic de Broglie wavelength of an entangled photon pair state (a biphoton) generated by parametric down-conversion utilizing a normal Mach-Zehnder interferometer. The observed interference manifests the concept of the photonic de Broglie wavelength.