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This article is the original text and Chinese translation of Yuan Lanfeng's interview with the English edition of the Global Times on "Chinese researchers gain quantum advantage on two mainstream routes".
The original article was published on October 26, 2021 in the Global Times, the English edition of the Global Times, the original link: https://enapp.globaltimes.cn/article/1237312

Photo: Light-based quantum computer prototype 'Jiuzhang 2.0' Photo: Courtesy of University of Science and Technology of China
Chinese research teams have made marked progress in superconducting quantum computing and photonics quantum computing technology, making China the only country to achieve quantum computational advantage in two mainstream technical routes, while the US has only achieved a "quantum advantage" in superconducting quantum computing, analysts say.
It is reported that the Chinese scientific research team has made significant progress in superconducting quantum computing and photonic quantum computing technology, which makes China the only country to achieve quantum advantages in two mainstream technology routes, while the United States has only achieved "quantum advantages" in superconducting quantum computing.
Quantum advantage is a scientific concept that states a quantum computer can do things in some fields beyond the capability of non-quantum or classical computers, but it will never replace classical computers, Yuan Lanfeng, a research fellow at the Hefei National Laboratory for Physical Sciences at the Microscale of the University of Science and Technology of China (USTC), told the Global Times on Tuesday.
Yuan Lanfeng, an associate researcher at the Hefei National Research Center for Physical Sciences at the Hefei Microscale at the University of Science and Technology of China, said in an interview with the Global Times on Tuesday that quantum advantage is a scientific concept that quantum computers can do things in some areas that exceed the capabilities of non-quantum or classical computers, but it will never replace classical computers.
The research team, headed by the renowned Chinese quantum physicist Pan Jianwei, designed a 66-qubit programmable superconducting quantum computing system, naming it "Zuchongzhi 2.1," after the noted 5th century Chinese mathematician and astronomer, significantly enhancing the quantum advantage, the Xinhua News Agency reported Tuesday.
According to Xinhua News Agency on Tuesday, a research team led by the famous Chinese quantum physicist Pan Jianwei designed a 66-bit programmable superconducting quantum computing system, named "ZuchongZhi II" after famous Chinese mathematicians and astronomers in the fifth century, which greatly enhanced the quantum advantage.
"Zuchongzhi 2.1," is 10 million times faster than the current fastest supercomputer and its calculation complexity is more than 1 million times higher than Google's Sycamore processor. It's the first time that China has reached quantum advantage in a superconducting quantum computing system.
Zu Chong No. 2 is 10 million times faster than the fastest supercomputer today, and its computational complexity is more than 1 million times higher than Google's plane wood processor. This is the first time that China has achieved quantum advantage in a superconducting quantum computing system.
"Zuchongzhi 2.1" has achieved a quantum advantage for the first time compared with an earlier processor named "Zu Chongzhi", a 62-qubit programmable superconducting quantum prototype designed by a Chinese research team from the USTC in May, Lu Chaoyang, a professor of the USTC in Hefei, capital city of East China's Anhui Province, told the Global Times on Tuesday.
Lu Chaoyang, a professor at the University of Science and Technology of China in Hefei, the capital of Anhui Province in eastern China, told the Global Times on Tuesday that the Zuchong-2 achieved a quantum advantage for the first time over an earlier processor called the Zuchong-No., a 62-qubit programmable superconducting quantum prototype designed by a research team at the University of Science and Technology of China in May.
Pan's team also built a new light-based quantum computer prototype, "Jiuzhang 2.0," with 113 detected photons, which can implement large-scale Gaussian boson sampling (GBS) 1 septillion times faster than the world's fastest existing supercomputer, according to the Xinhua News Agency.
According to Xinhua, Pan's team also built a new prototype of a light-based quantum computer, "Nine Chapter Two", with 113 detected photons, which can achieve large-scale Gaussian boson sampling (GBS), which is 1024 times faster than the world's fastest existing supercomputer.
Yuan said that the number of detected photons for "Jiuzhang 2.0" increased to 113 from the previous 76 when the quantum computer prototype "Jiuzhang" first came out, which was a major technical breakthrough, as the difficulty increases exponentially with each additional detected photon.
Yuan Lanfeng said that the number of photons detected by the "Nine Chapters II" has increased from 76 when the "Nine Chapters" quantum computer prototype first came out to 113, which is a major technological breakthrough, because the difficulty of each detected photon is multiplied.
The light-based quantum computer prototype "Jiuzhang" was built in December 2020, led by Pan and Lu, and demonstrated a quantum advantage.
In December 2020, the prototype "Nine Chapters" of a light-based quantum computer led by Pan Jianwei and Lu Chaoyang was completed and demonstrated the advantages of quantum.
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Further reading:
Important progress has been made in the research on the superiority of quantum computing in China | University of Science and Technology of China
The Chinese team has developed a 62-bit quantum processor with the largest number of superconducting qubits in the world | Global Times
When quantum physics meets human randomness - the Big Bell Experiment, waiting for you to join! | University of Science and Technology of China
Yuan Lanfeng interpreted the superconducting quantum random walking computer "Zu Chong's number" | CCTV News Technology Yuan Ren
How godly are quantum computers? What historically unsolvable puzzles can it solve? | Yuan Lanfeng
Quantum computers are not computers? Would the keyboard warriors say that to the United States? | Yuan Lanfeng
The problem of "life-saving drugs are too expensive to buy" can be solved by quantum computers in the future? | Technology Yuan Ren
The "nine chapters" of the Chinese quantum computer brush screen, Yuan Lanfeng interprets the principle for you
Where are quantum computers strong? It's not because you can store the world's information | Yuan Lanfeng
Background: This article was published in the Global Times on October 26, 2021, originally titled: Chinese researchers achieve quantum advantage in two mainstream routes (https://enapp.globaltimes.cn/article/1237312), and is reprinted with permission from Voice of the Wind.
Editor-in-Charge: Zhu Yang