Optical photons are powerful carriers of quantum information, which can be delivered in free
space by satellites or in fibers on the ground over long distances. Entanglement of quantum …

Communication security has to evolve to a higher plane in the face of the threat from the
massive computing power of the emerging quantum computers. Quantum secure direct …

A quantum repeater node is presented based on trapped ions that act as single-photon
emitters, quantum memories, and an elementary quantum processor. The node's ability to …

A key challenge toward future quantum internet technology is connecting quantum
processors at metropolitan scale. Here, we report on heralded entanglement between two …

The scaling barriers currently faced by both quantum networking and quantum computing
technologies ultimately amount to the same core challenge of distributing high-quality …

Generating ion-photon entanglement is a crucial step for scalable trapped-ion quantum
networks. To avoid the crosstalk on memory qubits carrying quantum information, it is …

The trapped-ion quantum charge-coupled device (QCCD) architecture is a leading
candidate for advanced quantum information processing. In current QCCD implementations …

We entangle two cotrapped atomic barium ion qubits by collecting single visible photons
from each ion through in vacuo 0.8 NA objectives, interfering them through an integrated …

A three-qubit quantum network node based on trapped atomic ions is presented. The ability
to establish entanglement between each individual qubit in the node and a separate photon …

We report the first hybrid matter-photon implementation of verifiable blind quantum
computing. We use a trapped-ion quantum server and a client-side photonic detection …