Improving entanglement generation rates in trapped ion quantum networks using nondestructive photon measurement and storage

• URL: http://arxiv.org/abs/2101.04236v2
• Date: Wed, 24 Mar 2021 21:38:41 GMT
• Title: Improving entanglement generation rates in trapped ion quantum networks using nondestructive photon measurement and storage
• Authors: John Hannegan, James D. Siverns, Jake Cassell, Qudsia Quraishi
• Abstract summary: We propose a hybrid networking architecture designed to improve entanglement rates in quantum networks based on trapped ions. We show this proposed quantum network can generate remote entanglement rates up to a factor of 100 larger than that of an equivalent homogeneous network at both near-IR and C-band wavelengths for distances up to 50 km.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Long range quantum information processing will require the integration of different technologies to form hybrid architectures combining the strengths of multiple quantum systems. In this work, we propose a hybrid networking architecture designed to improve entanglement rates in quantum networks based on trapped ions. Trapped ions are excellent candidates as network nodes but photon losses make long-distance networking difficult. To overcome some losses and extend the range of trapped-ion-based networks, we propose including neutral-atom-based non-destructive single-photon detection and single photon storage in between networking nodes, forming a hybrid network. This work builds on recently demonstrated optical frequency conversion of single photons emitted by trapped ions. We derive the average two-node entanglement rate for this proposed network architecture as a function of distance. Using reasonable experimental parameters, we show this proposed quantum network can generate remote entanglement rates up to a factor of 100 larger than that of an equivalent homogeneous network at both near-IR and C-band wavelengths for distances up to 50 km.

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