Nonclassical correlations between terahertz-bandwidth photons mediated by rotational quanta in hydrogen molecules

Optics Letters
Philip J BustardBenjamin J Sussman

Abstract

Quantum photonics offers much promise for the development of new technologies. The ability to control the interaction of light and matter at the level of single quantum excitations is a prerequisite for the construction of potentially powerful devices. Here we use the rotational levels of a room temperature ensemble of hydrogen molecules to couple two distinct optical modes at the single photon level using femtosecond pulses with 2 THz bandwidth. We observe photon correlations that violate a Cauchy-Schwarz inequality, thereby verifying the creation of a nonclassical state. This work demonstrates the rich potential of molecules for use in ultrafast quantum photonic devices.

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Citations

Oct 4, 2016·Journal of Modern Optics·Khabat HeshamiBenjamin J Sussman
Nov 3, 2016·Optics Letters·Philip J BustardBenjamin J Sussman
Jun 23, 2018·Physical Review Letters·Mitchell D AndersonChristophe Galland

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