Big ticket investments have created a growing number of quantum unicorns. Chinese strides with photonic and superconducting qubits have grabbed attention. Trapped ions have shone with demonstrations of logical qubits. But who is winning the race to build a practical quantum computer?
China’s quantum supremacy demonstration may grab headlines, but not yet leadership in the quantum computing race. Leading hardware groups have firmed-up their development roadmaps for the marathon ahead and error correction has become a key part of the story. The challenge of scaling-up remains pre-eminent. A growing number of quantum majors, startups and institutes are…
Excitement mounts as we approach a demonstration of quantum supremacy. However a very long road remains to build a fault tolerant quantum computer Quantum hardware announcements continue to come at speed: Google has just announced Bristlecone, a 72 superconducting qubit device (though it remains to be seen if it can maintain the high fidelity performance of its…
