Chinese Scientists Detail Jiuzhang 4.0 Prototype in Nature, Solving Problems in 25 Microseconds
Updated
Updated · english.cas.cn · May 18
Chinese Scientists Detail Jiuzhang 4.0 Prototype in Nature, Solving Problems in 25 Microseconds
5 articles · Updated · english.cas.cn · May 18
A Nature study published Wednesday lays out Jiuzhang 4.0, a programmable optical quantum computing prototype that Chinese scientists describe as a major power breakthrough.
Jiuzhang 4.0 reportedly solved complex problems in 25 microseconds, a speed earlier reports contrasted with 10^42 years for the El Capitan supercomputer.
The machine manipulates 3,050 photons and operates with 92% light-source efficiency, underscoring the optical advances behind the result.
Jiuzhang 4.0 builds on Chinese prototypes unveiled in 2020 and 2023, as Beijing treats quantum technology as a strategic priority in its 15th Five-Year Plan.
Beyond speed records, when will China's quantum computers start reshaping industries and delivering economic returns?
As classical algorithms advance, is China's quantum speed advantage truly secure or just a temporary milestone?
Are US tech sanctions backfiring, creating a more self-sufficient and dominant Chinese quantum industry?
Jiuzhang 4.0 Sets World Record with 3,050-Photon Photonic Quantum Computer, Redefining Quantum Advantage and Global Race
Overview
Jiuzhang 4.0, recently unveiled, marks a major breakthrough in photonic quantum computing by setting a new world record and demonstrating quantum computational advantage. This achievement solidifies China’s leading position in optical quantum computing. Jiuzhang 4.0’s performance represents a significant leap in both the scale and complexity of low-loss photonic quantum processors, pushing the boundaries of what is possible with light-based quantum systems. With advanced technical capabilities, it showcases how innovation in photon manipulation can drive the field forward and open new possibilities for quantum technology.