Feature How to Span the Quantum Gap Edwin Cartlidge Building continental-scale quantum communications links is an arduous task, but scientists believe they have the technology in hand. Log in or become a member to view the full text of this article. This article may be available for purchase via the search at Optica Publishing Group. Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits. Publish Date: 01 April 2022 Add a Comment Please enable JavaScript to view the comments powered by Disqus.