Quandela has announced a significant advancement in photonic quantum computing, demonstrating a method to reduce the number of components required for fault-tolerant calculations by a factor of 100,000. The breakthrough, detailed in a new scientific paper, leverages Quandela’s hybrid approach, which integrates semiconductor quantum emitters to generate photonic qubits with high efficiency.
Photonic quantum computing is considered a promising platform for scalable error-correction due to photons’ ability to carry quantum information over long distances and interconnect processors via optical fiber. However, photon loss remains a key challenge. Quandela’s approach significantly lowers resource requirements, requiring just 12 components to create a logical qubit compared to approximately one million in conventional photonic-only methods.
This reduction not only enhances scalability but also improves energy efficiency. Quandela estimates that its largest quantum computers will operate below 1MW of power consumption—considerably lower than conventional supercomputing centers and AI cloud infrastructure. The company views this advancement as a critical step toward the industrialization of fault-tolerant quantum computing.
For more details, visit Quandela’s official announcement here.
February 8, 2025
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