Researchers from the RIKEN Center for Quantum Computing and Toshiba have developed a quantum computer gate using a double-transmon coupler (DTC), greatly enhancing the fidelity of quantum gates. They achieved a 99.92% fidelity for a two-qubit CZ gate and 99.98% for a single-qubit gate. This breakthrough, part of the Q-LEAP project, improves the performance of current noisy intermediate-scale quantum (NISQ) devices and brings quantum computing closer to fault-tolerant operations by enabling more effective error correction.
Novel high-fidelity quantum computing gate with 99.92% fidelity
A quantum computer gate using a double-transmon coupler (DTC).
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