Quantum

Quantum Networking at the Speed of Quantum Computation: Kilohertz Entanglement in a Heterogeneous Quantum System

Read full article at source ↗

Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 09/10/2026, 04:13:24 UTC.

Briefings

Researchers entangled a trapped 138Ba+ ion with a silicon-vacancy center in a diamond nanophotonic cavity, generating Bell pairs at an average rate of 1.03 kHz. This achievement yields a fidelity of 87.9%, representing four times the entanglement rate of existing photonic links between trapped ions. The experiment utilized a single detected photon to herald entanglement, matching the cycle time of planned trapped-ion processors. The study was published in October 2026 on arXiv.

Key points

• The experiment entangled a trapped 138Ba+ ion with a silicon-vacancy center in a diamond nanophotonic cavity, generating Bell pairs at an average rate of 1.03 kHz.
• The achieved fidelity of 87.9% is four times the rate of the fastest photonic link between two trapped ions, matching the cycle time of planned trapped-ion processors.

Context and limitations

The study is a preprint on arXiv and does not yet represent peer-reviewed publication. Results are based on a single experimental run with limited sample size, and the reported rate is an average over all conversion losses.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 09/10/2026, 04:29:18 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

View archived briefing on IPFS
bafybeiczberuzo3s6u4stqzmyjdjmabidt3ilnpkef53ziowrbnsj2l35q