Quantum interference from remotely trapped ions

Abstract

We observe quantum interference of photons emitted by two continuously laser-excited single ions, independently trapped in distinct vacuum vessels. High contrast two-photon interference is observed in two experiments with different ion species, calcium and barium. Our experimental findings are quantitatively reproduced by Bloch equation calculations. In particular, we show that the coherence of the individual resonance fluorescence light field is determined from the observed interference.

References in corpus (20)

• Quantum state transfer and entanglement distribution among distant nodes in a quantum network
• Free-Space distribution of entanglement and single photons over 144 km
• Storage and retrieval of single photons transmitted between remote quantum memories
• Creation of entangled states of distant atoms by interference
• Proposal for teleportation of an atomic state via cavity decay
• Efficient engineering of multi-atom entanglement through single-photon detections
• Bell inequality violation with two remote atomic qubits
• Robust long-distance entanglement and a loophole-free Bell test with ions and photons
• Distribution of time-bin qubits over 50 km of optical fiber
• Quantum interference between two single photons emitted by independently trapped atoms
• Reversible state transfer between light and a single trapped atom
• Quantum Interference of Photon Pairs from Two Trapped Atomic Ions
• Entanglement of a photon and a collective atomic excitation
• Laser driven atoms in half-cavities
• Time-Resolved Two-Photon Quantum Interference
• Nano Positioning of Single Atoms in a Micro Cavity
• Robust entanglement
• Photon correlation vs interference of single-atom fluorescence in a half-cavity
• Nonclassical Interference Effects In The Radiation From Coherently Driven Uncorrelated Atoms
• Entanglement of distant atoms by projective measurement: The role of detection efficiency

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