• Morin, Olivier
• Distante, Emanuele
• Welte, Stephan
• Rempe, Gerhard
• Langenfeld, Stefan
• Daiss, Severin
• Hartung, Lukas
• Thomas, Philip

Abstract

<jats:title>Quantum gating at a distance</jats:title><jats:p>The processing of quantum information is reliant on the encoding and manipulation of quantum states of a qubit. Superconducting circuits are the most advanced platform at present, but there is an issue with cross-talk between the qubits and the challenge of error correction as the systems are scaled up. Another approach being pursued is a modular platform in which the qubits are spatially separated. Daiss<jats:italic>et al.</jats:italic>demonstrate the operation of a quantum gate in which one qubit conditionally controls the state of another qubit spatially separated by 60 meters (see the Perspective by Hunger). Because the approach is platform independent, it could be extended from the demonstrated neutral atoms to ions, impurity vacancy centers, or even a combination of these qubits.</jats:p><jats:p><jats:italic>Science</jats:italic>, this issue p.<jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6529" page="614" related-article-type="in-this-issue" vol="371" xlink:href="10.1126/science.abe3150">614</jats:related-article>; see also p.<jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6529" page="576" related-article-type="in-this-issue" vol="371" xlink:href="10.1126/science.abg1536">576</jats:related-article></jats:p>

Topics

• impedance spectroscopy
• vacancy