An Elementary Trapped-Ion Quantum Network
POSTER
Abstract
Trapped ions are a promising candidate for quantum information processing. Hybrid quantum networks based on photonic interfaces have been proposed as a modular architecture for trapped ion processors. In this work, two 88Sr+ ions in separate traps are entangled via the polarisation degree of freedom of spontaneously emitted 422 nm photons. We are able to generate Bell states with a fidelity of 94%, at a rate of 182 s-1 [1]. Using mixed species gate techniques developed by Hughes et al. [2], we aim to incorporate 43Ca+ qubits, which have excellent coherence properties, to create a hybrid quantum network, and we discuss possible applications.
[1] PRL 124, 110501 (2020)
[2] PRL 125, 080504 (2020)
[1] PRL 124, 110501 (2020)
[2] PRL 125, 080504 (2020)
Publication: Stephenson, L. J., et al. "High-rate, high-fidelity entanglement of qubits across an elementary quantum network." Physical Review Letters 124.11 (2020): 110501.
Presenters
-
Dougal Main
University of Oxford, Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, U.K.
Authors
-
Dougal Main
University of Oxford, Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, U.K.