China Unveils Jiuzhang 4.0: The Fastest Quantum Computer Yet
China builds fastest quantum computer
Image: The Independent
Chinese scientists have developed Jiuzhang 4.0, the fastest quantum computer prototype, capable of solving complex problems in just 25 microseconds. This breakthrough demonstrates China's leadership in quantum computing and addresses previous limitations in photon loss, achieving a significant leap in computational efficiency.
- 01Jiuzhang 4.0 can produce complex data samples in just 25 microseconds, compared to over 10^42 years for the El Capitan supercomputer.
- 02The new system integrates 1,024 high-efficiency squeezed-state optical fields, achieving a source efficiency of 92% and overall system efficiency of 51%.
- 03This development follows the Jiuzhang 3.0, which managed to manipulate 255 photons, marking a significant increase to 3,050 photons with Jiuzhang 4.0.
- 04The research team is led by the University of Science and Technology of China, which has been at the forefront of quantum computing advancements.
- 05Quantum technology is prioritized in China's 15th Five-Year Plan for 2026-2030, emphasizing the need for fault-tolerant universal quantum computers.
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A team of scientists from the University of Science and Technology of China has developed Jiuzhang 4.0, the world’s fastest quantum computer prototype. This advanced system can solve complex mathematical problems in just 25 microseconds, a feat that would take the El Capitan supercomputer over 10^42 years. The Jiuzhang series employs photonic quantum computing, encoding information in particles of light. To overcome photon loss, a significant challenge in large-scale photonic quantum processors, the team created a high-efficiency optical parametric oscillator light source and a spatiotemporally hybrid-coded interferometer. This innovation allows for the manipulation and detection of up to 3,050 photons, a substantial increase from the 255 photons managed by the previous Jiuzhang 3.0. The new architecture enhances connectivity and efficiency, achieving a source efficiency of 92% and an overall system efficiency of 51%. This technological leap underscores China's commitment to advancing quantum technology, as highlighted in its 15th Five-Year Plan, which aims to develop fault-tolerant quantum computers and accelerate industrial applications.
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The advancements in quantum computing could revolutionize various industries, including cryptography, materials science, and complex system simulations.
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