antiterror13
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Chinese scientists make quantum leap in computing
Source: Xinhua| 2017-05-03 10:20:03|Editor: An
Chinese leading quantum physicist Pan Jianwei (2nd R), an academician of the Chinese Academy of Sciences and his colleagues announce their achievements at a press conference in Shanghai, east China, May 3, 2017. Chinese scientists have built world's first quantum comg machine that goes beyond the early classical -- or conventional -- computers, paving the way to the ultimate realization of quantum computing beating classical computers. (Xinhua/Jin Liwang)
SHANGHAI, May 3 (Xinhua) -- Chinese scientists have built world's first quantum comg machine that goes beyond the early classical -- or conventional -- computers, paving the way to the ultimate realization of quantum computing beating classical computers.
Scientists announced their achievement at a press conference in the Shanghai Institute for Advanced Studies of University of Science and Technology of China on Wednesday.
Many scientists believe quantum computing could in some ways dwarf the processing power of today's supercomputers. The manipulation of multi-particle entanglement is the core of quantum computing technology and has been the focus of international competition in quantum computing research.
Recently, Chinese leading quantum physicist Pan Jianwei, an academician of the Chinese Academy of Sciences and his colleagues -- Lu Chaoyang and Zhu Xiaobo, of the University of Science and Technology of China, and Wang Haohua, of Zhejiang University -- set two international records in quantum control of the maximal numbers of entangled photonic quantum bits and entangled superconducting quantum bits.
Pan said quantum computers could, in principle, solve certain problems faster than classical computers. Despite substantial progress in the past two decades, building quantum machines that can actually outperform classical computers in some specific tasks -- an important milestone termed "quantum supremacy" -- remains challenging.
In the quest for quantum supremacy, Boson sampling, an intermediate (that is, non-universal) quantum computer model has received considerable attention, as it requires fewer physical resources than building universal optical quantum computers, Pan said.
Last year, Pan and Lu Chaoyang developed the world's best single photon source based on semiconductor quantum dots. Now, they are using the high-performance single photon source and electronically programmable photonic circuit to build a multi-photon quantum computing prototype to run the Boson sampling task.
The test results show the sampling rate of this prototype is at least 24,000 times faster than international counterparts, according to Pan's team.
At the same time, the prototype quantum computing machine is 10 to 100 times faster than the first electronic computer, ENIAC, and the first transistor computer, TRADIC, in running the classical algorithm, Pan said.
It is the first quantum computing machine based on single photons that goes beyond the early classical computer, and ultimately paves the way to a quantum computer that can beat classical computers. This achievement was published online in the latest issue of Nature Photonics this week.
Chinese leading quantum physicist Pan Jianwei, an academician of the Chinese Academy of Sciences, announces the achievements at a press conference in Shanghai, east China, May 3, 2017. Chinese scientists have built world's first quantum computing machine that goes beyond the early classical -- or conventional -- computers, paving the way to the ultimate realization of quantum computing beating classical computers. (Xinhua/Jin Liwang)
The Nature paper:
Wow. If I'm not mistaken, this is already a programmable fully working computer, comparable to (and faster in classical algorithm than) some of the first electronics computers.
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Hendrik_2000
Lieutenant General
Here is the video. If they can make it work it will be able to crack any encryption
While at the same time China build Quantum satellite that is impervious to tampering or snooping
Coupled with Quantume radar you got unbeatable combination
While at the same time China build Quantum satellite that is impervious to tampering or snooping
Coupled with Quantume radar you got unbeatable combination
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Hendrik_2000
Lieutenant General
China adds a quantum computer to high-performance computing arsenal
The country has developed a quantum computer based on multi-photon entanglement
China already has the world's fastest supercomputer and has now built a crude quantum computer that could outpace today's PCs and servers.
Quantum computers have already been built by companies like IBM and D-Wave, but Chinese researchers have taken a different approach. They are quantum computing using multiple photons, which could provide a superior way to calculate compared to today's computers.
The Chinese quantum computing architecture allows for five-photon sampling and entanglement. It's an improvement over previous experiments involving single-photon sourcing, up to 24,000 times faster, the researchers claimed.
The Chinese researchers have built components required for Boson sampling, which has been theorized for a long time and is considered an easy way to build a quantum computer. The architecture built by the Chinese can include a large number of photons, which increases the speed and scale of computing.
China is strengthening its technology arsenal in an effort to be self-sufficient. China's homegrown chip powers TaihuLight, the world's fastest computer.
In 2014, China said it would spend US$150 billion on semiconductor development so that PCs and mobile devices would convert to homegrown chips. Afraid that low-cost Chinese chips will flood the market, the U.S. earlier this year accused China of the semiconductor market to its advantage.
It's not clear yet if a quantum computer is on China's national agenda. But China's rapid progress of technology is worrying countries like the U.S. A superfast quantum computer could enhance the country's progress in areas like weapons development, in which high-performance computers are key.
But there's a long way to go before China builds its first full-fledged quantum computer. The prototype quantum computer is good for specific uses but is not designed to be a universal quantum computer that can run any task.
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In a bid to build computers of the future, China has also built a neuromorphic chip called Darwin.
The country has developed a quantum computer based on multi-photon entanglement
China already has the world's fastest supercomputer and has now built a crude quantum computer that could outpace today's PCs and servers.
Quantum computers have already been built by companies like IBM and D-Wave, but Chinese researchers have taken a different approach. They are quantum computing using multiple photons, which could provide a superior way to calculate compared to today's computers.
The Chinese quantum computing architecture allows for five-photon sampling and entanglement. It's an improvement over previous experiments involving single-photon sourcing, up to 24,000 times faster, the researchers claimed.
The Chinese researchers have built components required for Boson sampling, which has been theorized for a long time and is considered an easy way to build a quantum computer. The architecture built by the Chinese can include a large number of photons, which increases the speed and scale of computing.
China is strengthening its technology arsenal in an effort to be self-sufficient. China's homegrown chip powers TaihuLight, the world's fastest computer.
In 2014, China said it would spend US$150 billion on semiconductor development so that PCs and mobile devices would convert to homegrown chips. Afraid that low-cost Chinese chips will flood the market, the U.S. earlier this year accused China of the semiconductor market to its advantage.
It's not clear yet if a quantum computer is on China's national agenda. But China's rapid progress of technology is worrying countries like the U.S. A superfast quantum computer could enhance the country's progress in areas like weapons development, in which high-performance computers are key.
But there's a long way to go before China builds its first full-fledged quantum computer. The prototype quantum computer is good for specific uses but is not designed to be a universal quantum computer that can run any task.
.
In a bid to build computers of the future, China has also built a neuromorphic chip called Darwin.
duncanidaho
Junior Member
w
while the venture is the vision of a Shanghai businessman, the car itself is designed and built by foreigners mainly of European origin. The utube program i watched didnt say where the engine came from though.
while the venture is the vision of a Shanghai businessman, the car itself is designed and built by foreigners mainly of European origin. The utube program i watched didnt say where the engine came from though.
I have some questions regarding the recent announcement of quantum computer from China:
First let's see what is stated so far:
My question is then "What really is D-Wave's machine?" Shouldn't they be called the first? Or, D-Wave's machines are not really qualified as true quantum computers? See this
First let's see what is stated so far:
- D-Wave has made commercial quantum computers some years ago.
- Now, Chinese scientists have built world's first quantum computing machine that goes beyond the early classical -- or conventional -- computers. And this is made in the Nature magazine.
My question is then "What really is D-Wave's machine?" Shouldn't they be called the first? Or, D-Wave's machines are not really qualified as true quantum computers? See this
There are different kinds of quantum computers, based on different principles, but all are non-classical in the sense that they rely on some aspect of quantum mechanics. The D-Wave machines are based on adaiabetic quantum computation, or AQC. I'm not aware of the details, but the new Chinese machine is based on photon entanglement.
Thanks for the information about AQC. Now I find
Although I still don't understand the details, I get the different terms. Annihilation (AQC being a subclass) vs. entanglement.
The question remains though regarding whether D-Wave approach provide speed-up (faster than traditional computing) as tests by many parties do not show such speed-up and the criticism from
The ultimate question (whether the Chinese claim of being the first) is whether Chinese experiment resulted to the speed-up as claimed (10 times). That may be answered and verified by peer review after the publication on "Natural". Let's way and see.
Hendrik_2000
Lieutenant General
China built high speed railway in turkey is expanding It work well