What is World Quantum Day? It is celebrated on April 14, a reference to 4.14, the rounded first digits of Planck’s constant: 4.1356677×10−15 eV⋅s = 0.000 000 000 000 004 1356677 electron volt second, a product of energy and time that is the fundamental constant governing quantum physics.

Monga discusses the QUANT-NET project, the DOE-funded collaboration he leads with experts at Berkeley Lab, UC Berkeley, Caltech, and the University of Innsbruck, which is tackling the fundamental engineering challenges of distributing quantum entanglement across real-world fiber networks. He explains how quantum networking differs from classical networking: it’s not about moving large volumes of data, but about preserving fragile entangled states across distance before they lose coherence.

Monga also discusses the team’s recent release of open-source control plane software designed to move quantum networking out of the manual, lab-bench stage and toward automated, software-driven operations. Looking ahead, he imagines a future where a quantum internet coexists with today’s classical internet.

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