Stony Brook, Brookhaven Send Entangled Photons Across 13 Miles, Extending U.S. Quantum Network
Updated
Updated · Newsday · Aug 21
Stony Brook, Brookhaven Send Entangled Photons Across 13 Miles, Extending U.S. Quantum Network
2 articles · Updated · Newsday · Aug 21
Summary
Stony Brook and Brookhaven researchers said they have moved into a new phase by sending entangled photons across a 13-mile free-space optical link between the two institutions.
The test builds on a Friday demonstration that transmitted quantum-information light particles from Stony Brook’s Quantum Watchtower to Brookhaven’s Quantum Lighthouse using fiber and line-of-sight laser links.
Brookhaven called the result a key step toward sustained wireless exchange of quantum information, with infrared wavelengths chosen to match quantum processors and support long-distance entangled atomic systems.
The project is part of an effort to extend the nation’s longest quantum network so distributed quantum computers can work together; the next planned link would connect to Yale across Long Island Sound.