Photonic Inc and Microsoft: Quantum entanglement at telecom wavelengths

Photonic Inc., a start-up developing distributed quantum computing in silicon, cited a significant milestone: entanglement between modules. 

Microsoft, which has been collaborating with Photonic since last November, said the "accomplishment demonstrates that existing telecommunication networks have the potential to enable long-distance quantum communications—the foundation for a quantum internet and distributed quantum computing."  

Photonic’s approach is based on optically linked silicon spin qubits with a native telecom networking interface, meaning that it can integrate with the infrastructure, platforms, and scale of today’s global telecommunications networks, including the Microsoft Azure cloud. Three demonstrations, culminating in the teleported CNOT gate sequence, established and consumed distributed quantum entanglement—entanglement between qubits not adjacent to one another or even in the same cryostat.

“The crucial role that entanglement distribution will play in unlocking the commercial promise of quantum computing cannot be overstated. Large-scale quantum algorithms running across multiple quantum computers require enormous amounts of distributed entanglement to work well,” said Dr. Stephanie Simmons, Founder and Chief Quantum Officer at Photonic. “These demonstrations highlight the promise of our distinctive architectural approach to solve the challenge of scaling beyond single nodes. While there is still much work ahead, it’s important to acknowledge the pivotal role that entanglement distribution must play in shaping quantum system designs.”

Read Photonic’s scientific paper 

Read Photonic’s new whitepaper Distributed Quantum Computing in Silicon: Entanglement Between Modules

Read the Microsoft Azure Quantum Blog

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