Bandwidth-tunable single photon source in an ion trap quantum network

Abstract

We report a tunable single-photon source based on a single trapped ion. Employing spontaneous Raman scattering and in-vacuum optics with large numerical aperture, single photons are efficiently created with controlled temporal shape and coherence time. These can be varied between 70 ns and 1.6 $\mu$s, as characterized by operating two sources simultaneously in two remote ion traps which reveals mutual and individual coherence through two-photon interference.

Revised version with new Figure 4

References in corpus (4)

• Quantum Beat of Two Single Photons
• Deterministic single-photon source from a single ion
• Quantum interference from remotely trapped ions
• Entanglement of distant atoms by projective measurement: The role of detection efficiency

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