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

Philip J. Bustard, Jennifer Erskine, Duncan G. England, Josh Nunn, Paul Hockett, Rune Lausten, Michael Spanner, Benjamin J. Sussman

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Quantum photonics offers much promise for the development of new technologies. Th 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.

Original languageEnglish
Pages (from-to)922-925
Number of pages4
JournalOptics Letters
Volume40
Issue number6
DOIs
Publication statusPublished - 15 Mar 2015

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Bustard, P. J., Erskine, J., England, D. G., Nunn, J., Hockett, P., Lausten, R., Spanner, M., & Sussman, B. J. (2015). Nonclassical correlations between terahertz-bandwidth photons mediated by rotational quanta in hydrogen molecules. Optics Letters, 40(6), 922-925. https://doi.org/10.1364/OL.40.000922