Toshiba and RIKEN Achieve 99.90% Fidelity with Double-Transmon Coupler for Superconducting Quantum Computers

Optical Microscope Image of the Circuit with the Double-Transmon Coupler. Credit: Toshiba Toshiba’s new breakthrough in quantum computing—its Double-Transmon Coupler—is expected to significantly enhance the performance of superconducting quantum computers. Collaborating with RIKEN, Toshiba’s team achieved a world-class fidelity of 99.90% for a two-qubit gate, which is crucial for quantum computation. This innovation addresses key […]

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