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Latin America Optics and Photonics Conference

Multiphoton interference of distinguishable photons based on photonic inner mode structure.

Juan Camilo Alarcon, Miguel Villalobos, Andrés Camilo Quintero, Alejandra Valencia

Published Jan 1, 2022• 0 citations
Publisher

Abstract

Two photon interference in transverse momentum variables is presented via spatially resolved correlation measurements. Interest is devoted to study theoretically and experimentally the interference when the input photons are distinguishable in their spatial variables.
DOI
10.1364/laop.2022.w4a.38

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Multiphoton quantum interference underpins fundamental tests of quantum mechanics and quantum technologies. Consequently, the detrimental effect of photon distinguishability in multiphoton interference experiments can be catastrophic. Here, we employ correlation measurements in the photonic inner modes, time or frequency, to restore quantum interference between photons differing in their colors or injection times in arbitrary linear optical networks, without the need for additional filtering or post selection. Interestingly, we demonstrate how harnessing the multiphoton inner-mode quantum information enables to unravel symmetries of multiphoton networks and states and the generation of an entire class of multipartite entangled states with a fixed interferometer. These results are therefore of profound interest for future applications of universal inner-mode resolved linear optics across fundamental science and quantum technologies with photons with experimentally different spectral properties.
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