News on China's scientific and technological development.

SanWenYu

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Chinese scientist Tan Tieniu (谭铁牛) won the most prestigious award in the field of pattern recognition for his exceptional achievements. Since 1988 the award was created, this is the first time the award is given to a person outside of North America and Europe.

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中国科学院院士谭铁牛荣获国际模式识别最高奖​

北京8月24日电 (记者 孙自法)中国科学院(中科院)24日发布消息说,第26届国际模式识别大会当地时间8月22日在加拿大蒙特利尔开幕,国际模式识别协会主席在开幕式上宣布,该会决定将今年的国际模式识别领域最高奖——傅京孙奖颁授于中科院院士、中科院自动化研究所智能感知与计算中心主任谭铁牛研究员,以表彰他在模式识别领域所取得的杰出成就。

这是国际模式识别领域最高奖自1988年设立以来,首次颁授于北美和欧洲地区以外的学者。
 

sunnymaxi

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BEIJING, Aug. 24 (Xinhua) -- China has witnessed growth in the number of patent transfers and licenses over the past year, the country's top intellectual property (IP) regulator said on Wednesday.

In 2021, the number of patent transfers and licenses nationwide reached 420,000, up 15 percent year on year. Among them, the growth rate in low-carbon industries such as green new energy is more than twice the national average, the National Intellectual Property Administration revealed at its monthly press conference.

The number of patent transfers and licenses in Chinese universities and research institutes reached 27,000, a year-on-year increase of 33.4 percent, of which 30 percent of the patents belonged to strategic emerging industries, a spokesperson for the administration said.

Lei Chaozi, head of the science and technology department of the Ministry of Education, attributed the progress to efforts in talent cultivation.

Many universities have set up secondary disciplines or interdisciplinary disciplines related to intellectual property, and over 100 Chinese universities have established IP undergraduate programs, with more than 12,000 students, said the official.

He also highlighted that university patent transfer and licensing agreements vaulted from 2,357 in 2012 to over 15,000 in 2021. The monetary value of patent commercialization amounted to 8.89 billion yuan (about 1.3 billion U.S. dollars) from 820 million yuan during the period.

"It is an achievement of both quantity and quality trending up simultaneously," Lei said.
 

SanWenYu

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China keeps making progress in measurement-device-independent quantum key distribution.

Paper published in English:
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Unbalanced-basis-misalignment-tolerant measurement-device-independent quantum key distribution​

Abstract​

Measurement-device-independent quantum key distribution (MDIQKD) is a revolutionary protocol since it is physically immune to all attacks on the detection side. However, the protocol still keeps the strict assumptions on the source side that specify that the four BB84 states must be perfectly prepared to ensure security. Some protocols release part of the assumptions in the encoding system to keep the practical security, but the performance would be dramatically reduced. In this work, we present a MDIQKD protocol that requires less knowledge of the encoding system to combat the troublesome modulation errors and fluctuations. We have also experimentally demonstrated the protocol. The result indicates a high performance and good security for practical applications. Its robustness and flexibility also exhibit a good value for complex scenarios such as the QKD networks.

News report in Chinese:
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中国科学技术大学郭光灿院士团队的韩正甫教授及其合作者银振强、王双、陈巍等,提出了兼具高稳定性和高安全性的误差容忍测量设备无关量子密钥分发协议,并从安全性分析和实验验证两方面证实了该协议对源端非理想特性具有极强的容忍能力,有力推动了新一代量子密钥分发技术的实用化进程。相关研究成果在线发表于《光学》。
信息安全是当今时代的重要主题,量子密钥分发技术以量子物理原理为基础,可实现理论上无条件安全的密钥分发。然而,这种理论安全性需要两个重要的假设,即用户拥有符合理论模型描述的理想设备,以及窃听者不能侵入系统的探测端和源端。

测量设备无关量子密钥分发可以免疫所有针对探测端的潜在攻击行为,是新一代量子密钥分发技术的典型协议。然而,其依然保留了对源端的诸多安全性假设,例如量子态调制中的误差和噪声就会违背这些安全性假设,不仅会显著降低量子密钥分发系统的性能,还会给潜在窃听者带去可乘之机。在复杂的实际环境中,用户不得不耗费大量的资源以监控和校准源端,不仅会降低协议执行的效率,也可能带来潜在的安全问题。

为推进新一代量子密钥分发技术的实际应用,韩正甫团队通过将源端常见的非理想特性纳入安全性证明框架中,提出了兼具高稳定性和高安全性的测量设备无关协议——误差容忍测量设备无关协议。该协议在免除了对探测端所有安全假设的同时,还免除了源端的“单光子态不可区分假设”和“纯态假设”。由于免除了这两条假设,测量设备无关协议对量子态调制中的信号畸变和噪声具有极强的容忍能力。

经过严格的安全性分析,团队证明了这些源端设备的非理想特性不会破坏测量设备无关协议的安全性,也不会降低系统的安全密钥生成速率,因此误差容忍协议兼具高安全和高稳定两大特性。

韩正甫团队进一步搭建测量设备无关系统,对提出的误差容忍协议进行实验验证。团队首先通过自主设计的Sagnac-AMZI编码器和四强度诱骗态调制装置实现了原始测量设备无关协议,并通过该系统观察测量调制信号具有不同误差时原始协议性能的变化。随后,团队使用同一系统执行误差容忍测量设备无关量子密钥分发协议,在不对选基信号进行预先校准的情况下实现了几乎恒定速率的安全密钥分发。

通过前后性能对比,证明了误差容忍测量设备无关协议的高稳定特性,以及对于实际应用的重要价值。由于实际量子密钥系统往往需要工作在复杂快变的环境中,很难实现源端的精确实时校准。韩正甫团队的这项成果极大推进了测量设备无关量子密钥分发技术的实用化进程,也为量子密钥分发技术真正走向无条件安全奠定了理论和实验基础。
 

4Runner

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智能中国——数字化转型进行时​

Intelligent China -- Digital Transformation Underway

This is a series of stories about intelligent digital transformation in real world scenarios. These stories are "being" "underway", not will have, would have, can have or could have. This is a playground that all of us technologists have been dreaming of engaging. One can get a sense of progress in all things high-tech or deep-tech in 21st century modern life.
 

SanWenYu

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The
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published the result of three major R&D projects. [IIRC this is the lab that demostrated a 6G network prototype a while ago.]

1. a large scale wide area deterministic networking system,

This wide area network covers 36 cities including Beijing, Nanjing and Shanghai. With total distance over 13000km, even when the bandwidth utilization is at 100%, there is zero packet loss and the network latency jitter is less than 20 microseconds (a microsecond is a millionth of 1 second).

For reference, see this ZTE paper on
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.

2. a cloud-native operating system for computation network,

It can support up to 1 million tenants, 100 thousand computation clusters, 10 thousand blockchain transactions concurrently.

[I am not sure whether I have read the Chinese description of it correctly. Please correct me if I am wrong.]

3. a wireless transport testbench for
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.

In the 385~435GHz band, it has achieved 200Gbps of "online transport (在线传输)" and 1Tbps of "offline transport (离线传输)". This is the highest published transport speed in the TeraHz band.

[Again I am not sure about the translation as it is not my field.]

8月24日,第六届未来网络发展大会如期而至,南京再次因创新而闪耀!
作为大会的重磅环节,紫金山实验室联合未来网络产业公司、江苏省未来网络创新研究院在本次大会期间发布了全球首个广域确定性网络系统重大突破成果,同时紫金山实验室还发布了全球首个云原生算网操作系统、全球首个6G TKμ极致连接无线传输试验平台V1.0两项重大科研成果。


其中,全球首个广域确定性网络系统由紫金山实验室联合北京邮电大学等单位在全球范围内首次突破大规模广域确定性网络技术体系,模拟“高铁”系统,提出基于时隙的传输机理、并发业务流整形机制、高效业务流调度算法,研制确定性大网操作系统,实现全网时隙统一调度,并基于未来网络试验设施首次实现华为、新华三确定性设备异构组网,正式开通了覆盖北京、南京、上海等36个城市的广域确定性网络,在100%网络负载、途径13个省市、13000公里距离、10000条确定性业务情况下,实现零丢包、时延抖动小于20us。该技术体系有望解决传统互联网拥塞无序的问题,推动互联网从“尽力而为”到“确保所需”的技术体系变革,支撑国家“东数西算”、“碳中和”等重大战略,赋能远程医疗、智能网联汽车、元宇宙等对网络质量要求极高的重大数字经济应用领域。


全球首个云原生算网操作系统实现了异构、多方算网资源的统一管控,可为业务系统提供“算力+网络”一站式服务,以云原生模式供给算网资源,使用户聚焦于应用与流量需求,而无需关注基础设施与IaaS。这将在根本上改变目前计算与网络分离、资源与运营绑定的业态模式。云原生算网操作系统同步可实现全局应用分发,广域服务互联,多方资源供给三大核心能力,可提供100W+系统业务租户,10W+算力资源集群,1W+链上交易结算服务,从而实现服务“东数西算”、网云融合、工业互联网、“元宇宙”等重大应用场景。


本次发布的6G TKμ极致连接无线传输试验平台V1.0,以Sub-6GHz、毫米波和太赫兹全频谱统一接入无蜂窝(Cell-Free)大规模MIMO及准实时智能资源调配等关键技术突破为支撑,其无线传输技术能力较5G实现了大幅提升。该平台采用了光子太赫兹光纤一体融合实时传输全新架构,分别完成了385~435GHz太赫兹频段上200Gbps在线传输和1Tbps离线传输,创造了太赫兹通信领域公开报道的全球最高传输速率记录;完成了与5G商用终端兼容的无蜂窝大规模分布式MIMO无线传输试验,实现了48个空分数据流的并行传输,频谱效率超过0.2Kbps/Hz,支持空口时延低于400μs,具备大规模分布式节点的扩展能力,核心关键技术指标达到了目前国际上最高水平。该成果标志着我国在6G候选技术研发方面取得了重要阶段性进展,为实现未来6G无线传输能力较5G量级提升的发展目标打下了坚实基础。
 

SanWenYu

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Construction of the core steel structure of the "4 second electromagnetic catapult for micro gravity experiments" completed and passed inspection recently.

This catapult can create high-G and near zero-G by shooting a capsul vertically up to 40m high in 2 seconds then let it drop back on ground in another 2 seconds. The goal is to simulate the different gravities in space, on the moon and on Mars.

模拟火星重力 亚洲首个航天领域“跳楼机”项目钢结构竣工验收​


北京8月23日电 (王东坡)用4秒钟弹射到40米高空再落回到地面上是一种什么体验?近日,北京市海淀区一项被喻为航天领域“跳楼机”的高科技实验装置项目钢结构工程竣工验收,正式进入核心试验装置安装阶段。


该“跳楼机”名为4秒电磁弹射微重力实验装置项目,坐落于北京市海淀区中国科学院北京新技术基地内。作为国家大科学装置,它是亚洲首例、世界第二例工程。该装置采用一种类似于炮弹造型的直线电机驱动实验舱体,通过电机全程控制加速度过程,以“2秒弹射到40米高空再2秒回落”的方式来产生微重力和超重环境,最终实现模拟微重力、月球重力、火星重力等运动模式,为航天大规模空间科学项目提供地基短时微重力实验服务。
 

sunnymaxi

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BEIJING (Reuters) -- Chinese search engine giant Baidu revealed its first quantum computer on Thursday and is ready to make it available to external users, joining the global race to apply the technology to practical uses.

The Baidu-developed quantum computer, dubbed "Qianshi," has a 10-quantum-bit (qubit) processor, Baidu said in a statement. The Beijing-based company has also developed a 36-qubit quantum chip, it said.

Governments and companies around the world for years have touted the potential of quantum computing, a form of high-speed calculation at extraordinarily cold temperatures that will bring computers to unprecedented processing speeds.

However, current real-world applications in the field are still very basic and limited to a small group of early clients.

The United States, China and the European Union have initiated massively funded projects in quantum computing, hoping to pull ahead in the field, which is often considered as one of the cornerstones on which the new global supremacy will be determined.

Global governments and companies will invest around $16.4 billion in quantum development by the end of 2027, according to market researcher IDC.

U.S. tech giant IBM has said that it plans to make a quantum computer ready for commercial use in 2025 with a more-than-4,000 qubit processor. IBM has so far released quantum processors with 127 qubits.

Alphabet Inc's Google is also aiming to develop a computer with 1,000,000 qubits by the end of this decade.
 

Strangelove

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China Daily's take...

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Baidu ready to make next quantum leap​


By FAN FEIFEI | China Daily | Updated: 2022-08-26 09:07

63081cd8a310fd2bec9e4229.jpeg
Visitors review Baidu products relating to quantum computing at Quantum Create 2022 in Beijing on Thursday. CHINA DAILY

Chinese tech giant Baidu Inc on Thursday unveiled its first superconducting quantum computer and the world's first all-platform quantum hardware-software integration solution, a significant step in bolstering the long-awaited industrialization of quantum computing technology, industry experts said.

Quantum computing refers to the use of quantum mechanics to run calculations and it solves computation problems more efficiently than traditional computers. The new technology will speed up the computational power that drives many industries and affects everything from drug discoveries to how data is secured, experts added.

Baidu's industry-level superconducting quantum computer Qian Shi fully integrates hardware, software and applications, while its quantum solution Liang Xi offers versatile quantum services through cloud services and hardware access. Users can conveniently visit these quantum computational resources via mobile apps, PCs and the cloud, the company said.

"With Qian Shi and Liang Xi, users can create quantum algorithms and use quantum computing power without developing their own quantum hardware, control systems or programming languages," said Duan Runyao, director of the Institute for Quantum Computing at Baidu Research, at Quantum Create 2022, the company's first quantum developer conference.

Liu Yinchun, deputy secretary-general of Beijing's municipal government, said the newly launched superconducting quantum computer and solutions are conducive to lowering the application threshold of quantum computing and providing new paths for bolstering the development of the quantum computing industry.

Beijing will support cooperation among universities, research institutes and enterprises, promote quantum computing from laboratory to real-world applications, and enable the cutting-edge technology to empower various industries, Liu said.

China will speed up frontier science and technological layouts, such as quantum computing and quantum communication, during the 14th Five-Year Plan period (2021-25).

In recent years, the country has achieved a series of breakthroughs in quantum technology, including the world's first quantum communication satellite, which was developed by the University of Science and Technology of China, a 2,000-kilometer quantum communication line between Beijing and Shanghai, and the world's first optical quantum computing machine prototype.

Quantum computing will bring groundbreaking transformations in fields like artificial intelligence, computational biology, material simulation and financial technology, experts said.

In addition, tech companies such as Google, IBM and Microsoft are accelerating steps to develop quantum computing platforms. Chinese tech heavyweights including Alibaba, Baidu and Tencent have also tapped into the quantum computing sector.

According to a report from market consultancy International Data Corp, the scale of the global quantum computing industry is forecast to grow from $412 million in 2020 to $8.6 billion in 2027, representing a six-year compound annual growth rate of 50.9 percent.

"Quantum information technology mainly includes quantum computing, quantum communication and quantum precision measurement. The core lies in quantum computing," said Xiang Tao, an academician at the Chinese Academy of Sciences.

With the development of quantum computing, quantum technology will extend into every aspect of information processing, Xiang said, adding its industrialization will inject new vitality into the research of quantum computing and accelerate the development of quantum computers.
 
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