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Photonic Interfacing of Trapped Ions and Neutral Atoms

November 2, 2018 - 12:00pm
John Hannegan
Building future hybrid quantum networks will require interfacing different types of quantum systems. Photonic interconnects between such systems have rarely been investigated due to difficulties such as spectral mismatch. In this talk, I will discuss our progress on interfacing photons emitted from a trapped ion with neutral rubidium atoms. Using quantum frequency conversion, we convert 493 nm single photons emitted from a trapped 138 Ba ion to a Rb-resonant 780 nm, whilst still preserving the quantum statistics of the photons. Sending these photons through a heated 87 Rb cell, we observe slowed light, demonstrating the first interaction between neutral atoms and photons emitted from a single trapped ion. This interaction also provides a tunable means to synchronize photon arrival times emitted from distant trapped ion nodes in a quantum network.
Notes: Lunch served at 12:00 pm, talk at 12:15 pm.
PSC 2136