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arXiv:1602.05603 · Physical Review A

Full two-photon down-conversion of a single photon

Eduardo Sánchez-Burillo, Luis Martín-Moreno, Juan José García‐Ripoll, David Zueco

Published Nov 9, 2016• 37 citations
arXivHTMLPDF

Abstract

We demonstrate, both numerically and analytically, that it is possible to deterministically generate two photons from one and only one photon. We characterize the output two-photon field and make our calculations close to reality by including losses. Our proposal relies on real or artificial three-level atoms with a cyclic transition strongly coupled to a one-dimensional waveguide. We show that almost perfect down-conversion, with efficiency over $99%$, is reachable using state-of-the-art waveguide QED architectures such as photonic crystals or superconducting circuits. In particular, we sketch an implementation in circuit QED, where the three-level atom is a transmon.

DOI
10.1103/physreva.94.053814

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