Cisco advances quantum networking with new software stack
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Cisco Quantum Labs has unveiled new quantum networking software designed to connect quantum computers into distributed systems, taking a step toward making practical quantum computing a reality. The launch introduces three research prototypes and highlights the industry’s first network-aware distributed quantum computing software compiler.
For eeNews Europe readers working on high-performance computing, security, or next-gen telecoms, this move matters: it shows how classical and quantum systems might merge sooner than expected, enabling both new infrastructure and new business opportunities.
Networking quantum processors
Cisco’s Quantum Compiler prototype can partition and schedule circuits across multiple processors in a quantum data center, rather than limiting workloads to a single machine. What makes it unique, according to the company, is that it also supports distributed quantum error correction, a critical step toward scaling.
“Existing compilers only target circuits for single computers. Ours compiles circuits for network-connected computers potentially made of heterogeneous quantum compute technologies,” Cisco said in its announcement.
The company sees this as a tool for organizations planning scalable quantum infrastructure—whether that’s pharmaceutical firms running complex drug discovery algorithms, financial players executing multi-part simulations, or research groups testing new compute models.
Beyond quantum-only applications
Cisco also introduced Quantum Alert and Quantum Sync, two demos that use quantum networks for classical use cases. Quantum Alert promises eavesdropper detection at the physics level, adding a layer of protection against “harvest-now, decrypt-later” attacks. Quantum Sync enables distributed systems to coordinate decisions without direct communication, which could be valuable in latency-sensitive applications such as high-frequency trading.
The software prototypes build on Cisco’s earlier entanglement chip announcement, extending the company’s full-stack approach to quantum networking. All three demos will be shown live at the Cisco Quantum Summit on September 30–October 1, 2025, where the compiler prototype will also be available for download. Cisco emphasized that the new stack works across superconducting, trapped ion, and photonic platforms, underlining its ambition to make quantum networking hardware-agnostic.
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