Progress Towards Multispecies Three-Node Quantum Network
POSTER
Abstract
Trapped ions are one of the leading platforms for quantum technologies including simulations, computing, sensing, metrology, and networking. Quantum networking enables scaling of ion-trap-based quantum computers, where individual ion chains in separate traps can be entangled via photonic interconnects. Here we report our progress towards a quantum network consisting of three multispecies ion traps in separate vacuum chambers. Each node of the network contains barium ions for remote entanglement generation and nearby ytterbium ions for quantum memory. Using different species avoids crosstalk between communication and memory qubits and allows us to benefit from individual strengths of each ion species. Barium is well-suited for communications since it emits single photons in the visible range of the electromagnetic spectrum. Ytterbium features long coherence times allowing for long-lasting quantum memory. This approach offers potential for the creation of larger quantum networks for quantum computing scaling, quantum communications and other applications of quantum technologies.
*This work is supported by the ARO with funding from the IARPA LogiQ program, the AFOSR, the ARO MURI on Modular Quantum Circuits, the AFOSR MURI on Quantum Transduction, the AFOSR MURI on Interactive Quantum Computation and Communication Protocols. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 2139754.
Presenters
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Mikhail Shalaev
- Duke Quantum Center and Department of Computer and Electrical Engineering, Duke University
- Duke University