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HUAWEI: quantum computing without "hegemony"

via:博客园     time:2018/10/15 22:43:27     readed:328

Quantum computing is considered a revolutionary technology for the future. Probably it will become the core technology of AI and cloud computing in the future. On the agenda of the 3rd day of Huawei Full Link Conference, Yao Jizhi, Dean of the Institute of Cross-information at Tsinghua University, Turing Award winner and academician of Chinese Academy of Sciences, was the guest of the panel. Quantum Artificial Intelligence may be the ultimate learning machine of the future.


The reason for this is that quantum computing is still in its infancy. Although quantum computing is a revolutionary new computing technology based on quantum bits, compared with today's classic 0-bit and 1-bit computing, quantum computer commerce has a lot of technical challenges from hardware, software, algorithms to systems. A complex system engineering.

Huawei also announced its phased results in quantum computing, and released the quantum computing simulator HiQ cloud service platform, including quantum computing simulation cloud service and quantum programming framework.

  • Industry-leading quantum computing simulation cloud services include distributed full-amplitude simulators (up to 42 qubits in the cloud), distributed single-amplitude simulators (up to 169 qubits in the cloud), and the first quantum error correction circuit simulator cloud service (tens of thousands of qubits can be simulated) The performance of the circuit is 5-15 times better than that of the open source simulator CHP. Quantum computing simulator is the basic enabling technology of quantum computing software and hardware and algorithm research.

  • Initial Quantum Programming Framework: Compatible with the open source framework Project Q, two new GUI Quantum Circuit Choreography GUI (Graphical User Interface) and Hybrid Choreography Block UI (Block User Interface) are added to make classic-quantum hybrid programming simpler and more intuitive. Quantum cloud users and application ecology can be built ahead of schedule.

Comparing quantum computing with traditional computing, quantum software and quantum algorithm need revolutionary changes. The research of quantum algorithm may bring new ideas to future AI algorithm. Before the hardware system of quantum computing is mature, the simulator based on classical computing simulates and detects quantum circuit. The research and innovation of quantum algorithms, the development and verification of application software will play an important role, and it is the only way to popularize the research and application of quantum computing. Simple, intuitive and easy-to-use quantum programming framework is also very important for exploring the infinite possibilities of quantum algorithms and applications.

Academician Yao Jizhi said in August that the mainstream superconductors and ion wells have become more mature and mainstream technologies in quantum computing. Great progress has been made in diamond spin quantum computing and optical quantum computer. But quantum computing is an unprecedented field that can test our knowledge system at a new level, but each progress is difficult and great, and ultimately establishing a real quantum computing system will be a great challenge.


Weng Wenkang, chief scientist of HUAWEI quantum computing software and algorithm


HUAWEI Institute of quantum computing software and algorithm research architect, senior researcher Zhang Xuecang

During the conference, Weng Wenkang, a well-known expert in quantum computing, vice-director of the Institute of Quantum Computing, Southern University of Science and Technology, chief scientist of Huawei Quantum Computing Software and Algorithms, and Dr. Zhang Xuecang, a research architect and senior researcher of Quantum Computing Software and Algorithms at Huawei Central Academy of Sciences, accepted the proposal, including The media interview mentioned the topic of quantum hegemony and so on, and Lei Feng made the arrangement without changing the original intention.

Zhang Xuecang:

With regard to quantum hegemony, we do not like the word "quantum hegemony", which is actually a quantum advantage. Quantum advantage has two aspects, on the one hand, in the actual quantum computer can not solve the task of classical computing, on the other hand, theory has proved that some concrete examples, quantum computer is certainly much faster than classical computer, its advantage is much greater than classical computer, this has been from mathematics, algorithms. Many proofs. That's why you're spending a lot of money on quantum computing, because it's guaranteed in theory, and it's guaranteed to have a huge advantage in theory.

Weng Wenkang:

The significance of quantum hegemony is related to two limitations of quantum algorithms: the need for error correction and the need for multi-bit limits to define computational complexity. But the number of bits we can control is not very large at present, so Preskill put forward the concept of quantum hegemony, suggesting that we do not consider computational complexity first, because we do not have so many quantum bits.

The problem that quantum hegemony has to solve is to what extent the number of bits goes beyond the computational or analogue capabilities of classical machines, and then we can stop doubting the value of quantum computing. The problem itself is a very academic one, and I have done a lot of work on quantum hegemony. There are also colleagues and researchers in China who are working very hard to overcome the problem of quantum hegemony.

In the "basic concept and feasible options of Quantum hegemony" published by Weng Wenkang, compiled by the Heart of the Machine, it is mentioned in the paper "basic concepts and feasible options for quantum hegemony",

Lei Feng (Public name: Lei Feng) previously reported that Ali cloud quantum technology chief scientist Shi Yao-yun predicted a quantum hegemony in 2018. But at least until now, no one has announced quantum.

HUAWEI takes the first step in quantum computing

Weng Wenkang:

In the classical computer architecture, we traditionally reduce the size of the device process and improve the integration to speed up the calculation according to Moore's law, but this method has reached the bottleneck. In fact, the problem we encounter is that the device reaches the limit of quantum, one of the characteristics of quantum limit is that the device becomes unstable. For example, electrons can no longer be fixed in one place; we can no longer define exactly what is zero and what is one, so logical bits become unstable. But the source of instability does not mean that there are impurities and defects in the device. The limit is entirely due to the physical reason of quantum mechanics. Because to a very small extent, the rule of electronic compliance is actually the scope of quantum mechanics. The rules of quantum mechanics tell you that the physical state is uncertain, that it will become a zero-sum superposition state, and that a more powerful quantum computing device can be built using the superposition principle.

Second, Huawei's HiQ cloud platform, a quantum computing simulator released by Huawei, is the first step in investing in basic scientific research such as quantum computing, and Huawei will continue to lay out quantum computing. The HiQ cloud platform includes a simulator and a programming framework. Simulator is the leading industry in terms of cloud platform services. The addition of a quantum error correction simulator to the HiQ cloud platform is the first time the industry has proposed adding this feature to cloud services. The purpose of the HiQ cloud platform is actually an enabling platform for scientific research and education. We invite scientific researchers, teachers and students from the business community as well as academia to participate in the development of our platform, hoping to create a healthy atmosphere for the development of scientific research, education and personnel training in quantum computing.

It's easy to see that Huawei's idea of providing free services early in the development of quantum computing to attract outside interest in this emerging thing is also conducive to the development of Huawei's cloud services.

Quantum computing is the embodiment of HUAWEI's emphasis on basic scientific research.

Weng Wenkang:

HUAWEI is a company that attaches great importance to technology. It also attaches great importance to investing in basic research. Quantum computing is also a very cutting-edge technology. In recent years, rapid progress has been made. In the process of climbing Qomolangma, quantum computing can accumulate a lot of useful technology, and promote the development of science and technology. So HUAWEI is very interested in this area and will invest in it for a long time.

Being a quantum computer is a very complex system engineering. In the past, Huawei had a deep accumulation of hardware, software, algorithms, and system engineering in the ICT industry. It can play a great role in the development of quantum computing.

For example, this release of the HiQ cloud platform, we are in software parallel architecture capabilities, cloud server performance, is optimized at the same time, not only to achieve the cloud platform within the index is the industry leader, such as full amplitude, 42 bits, a single bit is 81 to 169 bits, but also the ability to achieve quantum error correction. Circuit simulation. These are the results of our HUAWEI team's efforts, and are also developed according to HUAWEI's own advantages.

Zhang Xuecang:

Quantum computation is likely to complement each other with classical computation. Huawei has a good accumulation of classic servers and cloud computing technology. Based on the resources of Huawei servers and cloud computing, Huawei has now done a good simulation platform. This simulation platform will serve as a good tool to speed up the research of quantum hardware and software. In fact, quantum computer besides the quantum part, but also the control system, the control system is very critical, based on microwave or laser technology, Huawei has a great advantage to do research.

Quantum and artificial intelligence. Personally, I agree with Mr. Yao that the future is quantum computing, natural intelligence, artificial intelligence has several very important elements, one is computational power, one is algorithm, one is data. The greatest driving force for quantum computers is the exponential power potential in some cases. Another aspect of artificial intelligence is the algorithm, because the algorithm of quantum computing is completely different from the classical algorithm, it will bring some new algorithm perspective. Quantum algorithms, for example, have been studied, which in turn has inspired classical algorithms to do better.

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