China has reached a significant achievement in quantum computing with the introduction of the Tianyan-504, a superconducting quantum computer featuring a 504-qubit chip known as "Xiaohong." This marks a major advancement for China, as it surpasses the 500-qubit threshold and enhances its national quantum computing capabilities.
Development of the Xiaohong Chip
The Xiaohong chip was created by the Center for Excellence in Quantum Information and Quantum Physics, which is part of the Chinese Academy of Sciences. Once the chip was completed, it was transferred to QuantumCTek Co., Ltd., a company specializing in quantum technology located in Anhui Province. The essential specifications of the chip—such as qubit lifespan, gate precision, and the depth of quantum circuits—are anticipated to be comparable to some of the leading global quantum computing platforms, particularly those that function through the cloud.
Integration into Global Platforms
Plans are underway to incorporate the Tianyan-504 into the "Tianyan" quantum computing cloud platform, enabling users worldwide to access the system. Since its launch in November 2023, this platform has already attracted more than 12 million visits from individuals across over 50 nations.
In May 2023, China Telecom Quantum Group was formed and is collaborating with QuantumCTek to further the advancement of quantum computers utilizing the Xiaohong chip.
A Continuation of Quantum Success
This latest milestone builds on China's previous achievements in quantum technology, which includes the "Jiuzhang 2.0" and "Zuchongzhi 2.1" systems. For instance, the Jiuzhang 2.0 operates with 113 detected photons, while the Zuchongzhi 2.1 consists of 66 qubits. With these innovations, China stands out as the only nation possessing a quantum advantage in both photonics and superconducting quantum computing.
