Tunable and state-preserving frequency conversion of single photons in hydrogen

Tyumenev R, Hammer J, Joly NY, Russell PSJ, Novoa D (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Science American Association for the Advancement of Science

Book Volume: 376

Article Number: eabn1434

Journal Issue: 6593

DOI: 10.1126/science.abn1434

Abstract

In modern quantum technologies, preservation of the photon statistics of quantum optical states upon frequency conversion holds the key to the viable implementation of quantum networks, which often require interfacing of several subsystems operating in widely different spectral regions. Most current approaches offer only very small frequency shifts and limited tunability, while suffering from high insertion loss and Raman noise originating in the materials used. We introduce a route to quantum-correlation–preserving frequency conversion using hydrogen-filled antiresonant-reflecting photonic crystal fibers. Transient optical phonons generated by stimulated Raman scattering enable selective frequency up-conversion by 125 terahertz of the idler photon of an entangled pair, with efficiencies up to 70%. This threshold-less molecular modulation process preserves quantum correlations, making it ideal for applications in quantum information.

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Tyumenev, R., Hammer, J., Joly, N.Y., Russell, P.S.J., & Novoa, D. (2022). Tunable and state-preserving frequency conversion of single photons in hydrogen. Science, 376(6593). https://dx.doi.org/10.1126/science.abn1434

MLA:

Tyumenev, R., et al. "Tunable and state-preserving frequency conversion of single photons in hydrogen." Science 376.6593 (2022).

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