Zuchongzhi-3, a superconducting quantum computing prototype with 105 ... a parallel single-qubit gate fidelity of 99.90%, a parallel two-qubit gate fidelity of 99.62%, and a parallel readout ...

Achieving integration of semiconducting and superconducting qubits with full industrial 300-mm wafer fabrication.

As one might expect, having some way to represent and manipulate qubits is a basic requirement of any quantum computer. For a single qubit the state vector is represented by a 2 × 1 matrix (or vector) ...

and ability to maintain quantum superposition long enough to perform calculations. But one of the major bottlenecks to deploying superconducting microwave qubit platforms is the extremely low ...

Fujitsu has announced the world’s first demonstration of a complete universal quantum gate set for diamond spin qubits with an error probability below 0.1% – achieving a fidelity among the highest ...

Qubit Stability If classical computing is built on bricks, quantum computing is built on smoke. Qubits—quantum bits—don’t ...

The device is the first of its kind to demonstrate control of a superconducting qubit using only light. Paper first author and graduate student Hana Warner said the transducer offers a way to tap the ...

In 2020, Chinese researchers developed Jiuzhang, achieving a similar milestone using a different quantum technology. In 2021, China introduced Zuchongzhi 2.1, a 66-qubit programmable superconducting ...

While high-precision universal gates are a key prerequisite toward quantum computation, there is still a long way to go to large-scale computation. "Our demonstration was on a two-qubit system and ...