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This demonstration marks a pivotal engineering milestone for US quantum infrastructure by establishing a permanent, 13-mile free-space optical link that overcomes atmospheric turbulence using adaptive optics. By transmitting native infrared wavelengths directly between atomic memories without conversion overhead, the system effectively bridges the gap between metropolitan fiber networks and long-distance satellite-based quantum communication. This achievement validates the feasibility of scalable, wireless quantum repeaters essential for building a robust national quantum internet.
Brookhaven Lab and Stony Brook Demonstrate First US Free-Space Quantum Network Link Across 13 Miles

A map shows Brookhaven National Laboratory, Stony Brook University, and Yale University — the three institutions hosting facilities that form a free-space optical (FSO) link. Researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Stony Brook University (SUNY) have demonstrated the first permanent free-space optical (FSO) quantum link in the United States. [...] The post Brookhaven Lab and Stony Brook Demonstrate First US Free-Space Quantum Network Link Across 13 Miles appeared first on Quantum Computing Report.
A map shows Brookhaven National Laboratory, Stony Brook University, and Yale University — the three institutions hosting facilities that form a free-space optical (FSO) link. Researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and Stony Brook University (SUNY) have demonstrated the first permanent free-space…
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