Finnish researchers set a new qubit coherence record, reaching millisecond thresholds crucial for practical quantum computing ...

Researchers from the RIKEN Center for Quantum Computing and Toshiba have succeeded in building a quantum computer gate based on a double-transmon coupler (DTC), which had been proposed ...

This new superconducting prototype quantum processor achieved benchmarking results to rival Google's new Willow QPU.

The Toshiba-RIKEN team achieved a world-class coherence time for the transmon qubit, a short gate time of 48 ns, and reduced the residual coupling strength to as low as 6 kHz, thereby achieving a ...

"We find that integrating a transmon-controlled phonon phase gate into the interferometer enables routing of a single phonon based on the transmon's quantum state.

The researchers demonstrated DB on a superconducting transmon qubit ... Benchmarking Quantum Gates and Circuits. Chemical Reviews, 2025; DOI: 10.1021/acs.chemrev.4c00870; ...

Researchers have succeeded in building a quantum computer gate based on a double-transmon coupler (DTC), which had been proposed theoretically as a device that could significantly enhance the ...

Quantum gates and errors. ... The researchers demonstrated DB on a superconducting transmon qubit — a widely used type of superconducting qubit in quantum computing — to show its ability to ...