A Finland-based firm that develops, builds and sells superconducting quantum computers, has achieved significant milestone and showcased improvements in two key metrics characterising the quality of quantum computer.
IQM Quantum Computers achieved a record low error rate for two-qubit operations. It demonstrated a CZ gate between two qubits with (99.91 +- 0.02) % fidelity, which was validated by interleaved randomised benchmarking.
Achieving high two-qubit gate fidelity is the most fundamental and hardest to achieve characteristic of a quantum processor. It’s also essential for generating entangled states between qubits and executing algorithms, according to the company.
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