Neutral-Atom Wavelength-Compatible 780 nm Single Photons from a Trapped Ion via Quantum Frequency Conversion

2018/01/03 by James Siverns, James D. Siverns, John Hannegan +1 · 2 citations
Computer Science · Physics and Astronomy · #Atomic physics #Ion #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum channel #Quantum entanglement #Quantum mechanics #Quantum network #Quantum optics and atomic interactions #physics.atom-ph #physics.optics #quant-ph

paper · pdf · doi:10.1103/physrevapplied.11.014044

published as Phys. Rev. Applied 11, 014044 (2019) · 5 page and 4 figures

arxiv created 2018/01/03 · openalex publication_date 2019/01/23 · arxiv updated 2019/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Photonic interactions between different types of quantum memories will be crucial in the implementation of long-range hybrid quantum networks. Unfortunately, such interactions are typically impossible, due to the differing resonance frequencies of different systems. To overcome this hurdle, the authors collect photons at 493 nm from trapped ¹³⁸Ba⁺ and convert them to 780 nm, a wavelength resonant with ⁸⁷Rb, while preserving the quantum statistics of the photons after frequency conversion. This result increases the networking range of ions and enables hybrid networking experiments between trapped ions and neutral atoms in quantum information processing.

Citations

• Advances in quantum teleportation
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Pure single photons from a trapped atom source

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