First of all, it's odd that you wish to compare what one Chinese company is spending to what the entire US government is promising to fund (which is all wrapped up in beaurocracy, conditions, feet-dragging paperwork). But even so, don't you worry; $1.5B in Chinese spending is more that $50B in corrupt headless chicken spending in the US. As Leonidas once said looking over at his 300 Spartans to the thousands of men brought by the other Greek states, "I brought more soldiers than you."Well it's not $50 billion, but it's something.
Key differences:Tencent launches US$1.5 billion fund to give Chinese scientists freedom to reach new heights of innovation
“Original innovation is the most difficult task in basic research. Free exploration is unpredictable, difficult to plan, extremely risky and time consuming. That’s why these research activities are less funded,” , executive vice-president of the University of Science and Technology of China and a lead scientist in China’s national quantum research programme, said in a statement.
The new programme will fund research in two major areas: mathematics and physical sciences; and biological and biomedical sciences. Under each area there are tens of secondary subjects, such as theoretical computing science and molecular biology.
“The scientists we fund are those who ‘sit on the bench’ doing fundamental research, and their research must step into ‘no man’s land’,” said a director of the secretariat of the programme in an interview published in China Science Daily on Wednesday.
Well it's not $50 billion, but it's something.
It's called WHATABOUTISM or in their case, WHAT ABOUT CHINA? but these losers would be the first to complain when challenge or point out their fallacies.Given how the US/West loves to draw simple conclusions to make grand declarations like how if something is bad for them that's happening, it must be worse in China with absolutely no evidence. For example if the West suffered from the 2008 Western Financial Crisis, it only means China is not too far behind. Or if they suffered through a Lehman's Brothers, China must be too. If they're suffering chip shortage for their car production, it must really bad in China despite how China is selling 20 times more EVs than are sold in the US. Or how about lately the West is suffering from one of the biggest heat waves in history so I see CNN report how China is suffering through a heat wave not even mentioning how the West is burning. I'm seeing all these reports of massive developments in China on automation technologies so my bet is someone in the US media will report how that will cause great unrest in China because China has over a billion people that won't have jobs just like how they predicted if China doesn't maintain above 6% growth, that will cause civil unrest. Well China hit below 6%, so where's all the rioting?
Robust and adaptable quantum key distribution network without trusted nodes
Quantum key distribution (QKD) networks are promising to serve large numbers of users with information-theoretic secure communication. In QKD networks, the detection-safe protocol, termed measurement-device-independent (MDI) QKD, can naturally enhance realistic security by supporting untrusted measurement nodes. However, the environmental disturbances to quantum states degrade the performance of multi-user communication. Here we propose an MDI-QKD networking scheme with robustness against environmental disturbance and adaptability to multi-user access, where more than two users can generate keys simultaneously regardless of aligning reference frames and compensating channel disturbance on polarization. To achieve this, we introduce the reference-frame-independent protocol as well as a polarization-compensation-free method, design a multi-user measurement unit, and combine it with original two-user units. The scheme is experimentally demonstrated for the improvement of network robustness and adaptability in multi-user scenarios, and the time and device costs of disturbance compensation can be saved from () to (1) for an N-user network.
量子密钥分发网络可实现高安全性
记者20日从中国科学技术大学获悉,该校郭光灿院士团队韩正甫教授及其合作者王双、银振强、陈巍等实现了抗环境干扰的非可信节点量子密钥分发网络,全面提高了量子密钥分发网络的安全性、可用性和可靠性,向实现下一代量子网络迈出了重要一步。相关研究成果日前在线发表于国际学术期刊《光学》上。
当前,量子保密通信网络已在全球各地先后部署,在实践中证明了其优越的安全通信能力。但网络中对于可信节点的需求提高了其实际部署的门槛,如何免除用户链路上必需可信的中间节点,降低对通信链路的安全性要求,从而构建下一代基于非可信节点的量子网络,是目前急需解决的问题。
测量设备无关量子密钥分发协议(MDI-QKD)通过设置一个非可信节点对编码量子态进行联合测量,可在两个用户间构建安全的通信链路,是构建百公里级城域量子网络的重要角色。然而联合测量不仅限定了参与用户的数量,还对信道环境的稳定性提出了更高要求,不利于在复杂网络环境下进行部署。
在前期研究的基础上,课题组设计了“萨格纳克—马赫—曾德尔”结构的非相敏量子编码器,能够免除相位参考系的补偿;同时,课题组借助随机化,擦除了编码量子态的偏振信息,使其具备抗信道偏振扰动能力;最后,课题组重新利用偏振维度进行多用户配对,能够同步实现多对用户的Hong-Ou-Mandel干涉和联合测量。在此基础上,课题组完成了测量设备无关量子密钥分发网络的构建,使其同时具备抗环境干扰、无需可信节点、支持多用户灵活组网的特性。
这项研究成果将推动下一代量子保密通信网络走向实用化,为未来量子互联网的具体形态做出了有益的探索。
Chinese scientists have found the genes that control the cotton fibre length. Looks like Xinjiang cotton are going to have even better quality.
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News report in Chinese:
soon somebody would say "China is genociding Cotton" ban them
报道: 近日,《生物技术通报》发表了中国农业科学院生物技术研究所研究员郎志宏团队培育的抗虫耐除草剂转基因玉米2HVB5,该品系遗传稳定、高抗虫、耐除草剂,可用于玉米害虫尤其是夜蛾科害虫的防治,具有很好的产业化应用前景。
通过室内和田间生物活性检测,2HVB5对东方粘虫和棉铃虫高抗,对草地贪夜蛾有明显的体重抑制,可有效防治玉米害虫尤其是夜蛾科害虫;可耐受田间使用中剂量4倍量的草铵膦,与回交亲本郑58相比农艺性状无显著差异。