Photonic Inc. Demos Quantum Communications Over Existing Networks
Photonic Inc., in partnership with TELUS, has demonstrated quantum communications running over existing fiber network infrastructure. The achievement is a significant step forward for distributed quantum computing. This technology could have long-term implications for blockchain security, data privacy, and transaction finality.
- The demonstration successfully teleported quantum information over 30 kilometers of TELUS's existing commercial PureFibre network in British Columbia. This is significant because it proves that today's standard fiber optic infrastructure can carry secure quantum information. - Photonic Inc.'s approach is unique as it uses silicon-based qubits with "T-centers," which are specific atomic-level structures in silicon that can both compute and communicate. This allows for the creation of entangled photons that are naturally at the same wavelength used in telecommunications, avoiding the need for complex frequency conversion. - Unlike previous experiments that only sent photonic qubits which had to be immediately measured, Photonic's technology teleported information to a matter-based quantum processor where it could be stored and used for computation. This capability is a crucial requirement for building distributed quantum computers. - The company, founded in 2016 by Dr. Stephanie Simmons, has raised a total of $375 million CAD from investors including TELUS, Microsoft, the Royal Bank of Canada, and the UK government's National Security Strategic Investment Fund. - Photonic's "Entanglement First™" architecture is designed for scalability by connecting multiple quantum processors together, similar to how classical supercomputers are built from many individual nodes. This distributed approach aims to overcome the limitations of building a single, massive quantum computer. - The technology has direct implications for creating a "quantum internet" that would be invulnerable to hacking by future quantum computers, a key concern for the security of blockchain and other cryptographic systems. - Photonic is part of Canada's National Quantum Strategy and is also involved with the US DARPA's Quantum Benchmarking Initiative, indicating government-level interest in their approach to fault-tolerant quantum computing.
