China to build quantum computer that is 1 million times faster than entire world's computing power

[52051]

Most of the recent quantum computer building by american companies like IBM/Google/etc are very primitve concept-proofing prototype that is far slower than today's supercomputer even at these area quantum computer supposed to be good at.

However, world reknown scientist Pan Weijian told the media that China is now building the world fastest quantum computer in China's newly founded State Lab for Quantum Computing in Anhui province.

The computer will bet not only faster than any supercomputer in the world, but actually far far more than that, according to Pan, the computer under development will be 1 million times faster than the combination of the computing power of the entire world's current computing devices.

He told the media that China will also build a password-cracking quantum computer that aiming at cracking passwords within seconds instead years/decades by current supercomputers.
http://mil.news.sina.com.cn/china/2017-09-12/doc-ifykuffc5326378.shtml

 

[cirr]

China building world’s biggest quantum research facility

Centre could boost military’s code-breaking ability and navigation of stealth submarines

PUBLISHED : Monday, 11 September, 2017, 8:46am
UPDATED : Monday, 11 September, 2017, 8:46am

Stephen Chen

China is building the world’s largest quantum research facility to develop a quantum computer and other “revolutionary” forms of technology that can be used by the military for code-breaking or on stealth submarines, according to scientists and authorities involved in the project.

The National Laboratory for Quantum Information Science will be located on a 37-hectare site next to a small lake in Hefei, Anhui province. Some time this month developers will be invited to bid for a contract to construct the site, according to an article in Hefei Evening News, a daily newspaper run by the city government on Thursday.

Pan Jianwei, China’s lead quantum scientist who was playing a key role in the project, told local officials at a briefing in May that technology developed in the facility would be of immediate use to the armed forces, according to Anhui Business Daily newspaper.

Quantum metrology, which measures small variations in physical parameters such as gravity with unprecedented accuracy, could significantly improve submarines’ stealth operations.

A submarine with a quantum navigation system could operate underwater for more than three months without the need to surface for positioning satellite signals.

After operating for 100 days underwater the captain would still be able to pinpoint the vessel’s position in the Pacific Ocean with a margin of error of just a few hundred metres according to Pan, who could not be immediately reached for comment.

Another key mission of the laboratory is to build the nation’s first quantum computer that could break an encrypted message in seconds.

“Our plan is that by 2020, or maybe as soon as next year, to achieve ‘quantum supremacy’ with calculation power one million times to all existing computers around the world combined,” Pan was quoted as saying by Anhui Business Daily, which is run by the provincial government.

It was unclear whether the computer could be used for code-breaking.

Construction work is expected to finish in 2 ½ years with a budget of 76 billion yuan (HK$91.6 billion).

Ground-clearing work started with approval from the central government in February, according to the website of the Chinese Academy of Sciences, the owner of the new facility.

Guo Guoping, a quantum information researcher at the Chinese Academy of Sciences in Hefei, said

a large facility with centralised resources could accelerate this process by pulling together the talents of scientists from all over the nation with knowledge and experience of multiple scientific disciplines to overcome a wide range of technical and engineering hurdles, he said.

Guo stressed that in the national laboratory, researchers’ performance should not be evaluated by the scientific papers they published but by their contribution to specific project targets, such as building a general-purpose quantum computer.

“This may sound a bit old-fashioned, even Soviet-style, but it can give China a chance to win the race,” he added.

China moved a step ahead with the launch of a quantum satellite last year and conducted a series of cutting edge experiments such as quantum entanglement and teleportation in space.

Last month the world’s longest and most sophisticated quantum key distribution network for ultra-secure communication between Beijing and Shanghai was successfully tested and deemed ready for official deployment in the military, government and financial sectors.

Guo said the field had advanced rapidly, but the delivery of a code-breaking machine by 2020 was “highly unlikely”.

Over the next few years, researchers from around the globe may be able to develop primitive quantum computers to deal with some specific tasks.

They could, for example, simulate the movement of particles at a subatomic level to solve some physical problems that might help develop new materials or drugs.

But these are not general-purpose computers capable of code-breaking, Guo added.

China building world’s biggest quantum research facility | South China Morning Post

 

[GS Zhou]

A most recent work of Prof. Pan Jianwei and his team. We should deploy a company of bodyguards to protect him.

中国科大在量子计算和量子模拟研究领域获重要进展：首次在超冷原子体系中观测到任意子激发
2017-09-12

　　最近，中国科学技术大学潘建伟教授及其同事苑震生、陈宇翱等在国际上首次通过量子调控的方法在超冷原子体系中发现了拓扑量子物态中的准粒子--任意子，并通过主动控制两类任意子之间的交换和编织，证实了任意子的分数统计特性，向着实现拓扑量子计算的方向迈出了重要一步。近日，国际权威学术期刊《自然•物理学》以研究长文的形式在线发表了这项重要研究成果。

组成物质世界的基本粒子通常根据其携带的自旋分为两类，即自旋为整数的玻色子（如光子）和自旋为半整数的费米子（如电子）。然而，1977年，挪威科学家Leinaas和Myrheim提出一个令人惊讶的理论：在二维空间中存在某种粒子，其行为服从介于玻色统计和费米统计之间的新的分数统计（Fractional Statistics）。由这类奇异粒子构成的物理系统，其波函数在两粒子坐标交换的情况下不体现对称或反对称性，而是获得一个任意的相位因子。因此，美国物理学家、2004年诺贝尔物理学奖得主Wilczek将该类准粒子命名为“任意子”（Anyon）。

　　 任意子的理论被提出后不久，物理学家就在实验上捕捉到了它的踪迹。1982年，美国华裔科学家崔琦等在二维电子气中发现分数量子霍尔效应，也籍此获得1998年的诺贝尔物理学奖；之后，国际上一些研究小组又通过一系列实验观测到任意子具有分数电荷的特征，并发现这些分数的大小与材料的拓扑性质有关，材料的拓扑性质不同，产生的分数拓扑相位也跟着变化。然而，如何直接实验观测任意子交换时产生的拓扑相位进而验证其分数统计特性，一直是一个巨大的实验挑战。

1997年，正在人们着迷于研究任意子的基本物理性质的时候，时任朗道理论物理所研究员、2016年基础科学突破奖得主Kitaev提出另一个大胆的想法：能否利用拓扑材料作为量子比特从物理层面抑制退相干从而保护量子比特、并操控材料中的任意子进行量子计算？他随即发展了一套基于任意子编织的拓扑量子计算理论，很快引起了量子物理学家的关注。之后的理论研究表明，拓扑量子计算的容错能力比之前最好的基于纠错码的量子计算提升了约3个数量级，达到了约1%，该容错率是目前实验技术能够达到的水平，这极大地激发了科学家们研制量子计算机的热情。

潘建伟研究团队十多年前就开始了拓扑量子计算的实验研究并取得了一系列研究成果，这包括使用六光子纠缠态模拟了任意子交换的分数统计特性[Phys. Rev. Lett. 102, 030502 (2009)]和使用八光子纠缠态构建了拓扑量子纠错码[Nature 482, 489 (2012)]。上述实验中，由于光子之间不存在相互作用，并未形成Kitaev模型中的拓扑物态，因此在物理层面不具备拓扑保护能力。能否实验制备Kitaev模型所描述的拓扑物态并观测其中的任意子统计，成为量子信息科学中亟待解决的一个重大问题。

针对这一重大问题，该研究团队创造性地搭建了新的实验系统和开发了独特的量子调控技术。Kitaev模型对应的拓扑物态需要粒子之间的相互作用为四体相互作用，而自然界中存在的物质内部粒子相互作用以两体相互作用为主，此前人们从未在任何物质中直接观测到四体相互作用。该团队选择了构建人工量子晶体来实现这一特殊的粒子间相互作用，研发了自旋依赖的超晶格系统来囚禁和操控超冷原子，并在晶格中巧妙地用光极化势形成了有效磁场梯度，抑制了晶格中存在的两体相互作用，使四体相互作用凸显并成为主导该物理系统的主要相互作用，成功操控光晶格中约800个超冷原子同时产生了约200个四原子自旋纠缠态；为了观测晶格中超冷原子的动力学行为，他们开发了高分辨的原位光吸收成像技术，首次观测到了四体环交换相互作用并演示了对此相互作用进行量子调控的能力；进而构建了Kitaev模型的最基本单元哈密顿量，通过微波反转原子自旋的方法，实现了任意子之间的编织交换过程，首次在光晶格体系中直接观测到了任意子交换产生的分数拓扑相位，是Kitaev理论模型提出20年后该体系中任意子分数统计特性的最直接的实验证明。

该研究成果的实现，为人们进一步研究任意子的拓扑性质提供了新的实验平台和手段，将推动拓扑量子计算和晶格规范场量子模拟领域的研究进展。该工作的预印本在arXiv网站一经公布，即获得了学术界同行的广泛兴趣和高度评价，如量子信息领域的国际著名学者、2013年沃尔夫物理学奖获得者Zoller等在《自然·物理》发表的综述文章对该工作的评价为：“使用冷原子实现了一个最小的Kitaev toric-code哈密顿量；这个系统显现了任意子分数统计特性，是拓扑相存在的明白无误的证据。” (“Very recently, ref. 119 reported on the implementation of a minimal toric-code Hamiltonian with cold atoms; this set-up exhibits fractional (anyonic) statistics, an unambiguous signature of topological phases.”)

该工作得到科技部、自然科学基金委、教育部、中科院等单位的资助。

 

[kankan326]

Let me guess. If China has this tool, it means no missile can attack China. Cause all rocket orbits can be calculated instantly and intercepted accurately.

 

[cirr]

A most recent work of Prof. Pan Jianwei and his team. We should deploy a company of bodyguards to protect him.

中国科大在量子计算和量子模拟研究领域获重要进展：首次在超冷原子体系中观测到任意子激发
2017-09-12

　　最近，中国科学技术大学潘建伟教授及其同事苑震生、陈宇翱等在国际上首次通过量子调控的方法在超冷原子体系中发现了拓扑量子物态中的准粒子--任意子，并通过主动控制两类任意子之间的交换和编织，证实了任意子的分数统计特性，向着实现拓扑量子计算的方向迈出了重要一步。近日，国际权威学术期刊《自然•物理学》以研究长文的形式在线发表了这项重要研究成果。

组成物质世界的基本粒子通常根据其携带的自旋分为两类，即自旋为整数的玻色子（如光子）和自旋为半整数的费米子（如电子）。然而，1977年，挪威科学家Leinaas和Myrheim提出一个令人惊讶的理论：在二维空间中存在某种粒子，其行为服从介于玻色统计和费米统计之间的新的分数统计（Fractional Statistics）。由这类奇异粒子构成的物理系统，其波函数在两粒子坐标交换的情况下不体现对称或反对称性，而是获得一个任意的相位因子。因此，美国物理学家、2004年诺贝尔物理学奖得主Wilczek将该类准粒子命名为“任意子”（Anyon）。

　　 任意子的理论被提出后不久，物理学家就在实验上捕捉到了它的踪迹。1982年，美国华裔科学家崔琦等在二维电子气中发现分数量子霍尔效应，也籍此获得1998年的诺贝尔物理学奖；之后，国际上一些研究小组又通过一系列实验观测到任意子具有分数电荷的特征，并发现这些分数的大小与材料的拓扑性质有关，材料的拓扑性质不同，产生的分数拓扑相位也跟着变化。然而，如何直接实验观测任意子交换时产生的拓扑相位进而验证其分数统计特性，一直是一个巨大的实验挑战。

1997年，正在人们着迷于研究任意子的基本物理性质的时候，时任朗道理论物理所研究员、2016年基础科学突破奖得主Kitaev提出另一个大胆的想法：能否利用拓扑材料作为量子比特从物理层面抑制退相干从而保护量子比特、并操控材料中的任意子进行量子计算？他随即发展了一套基于任意子编织的拓扑量子计算理论，很快引起了量子物理学家的关注。之后的理论研究表明，拓扑量子计算的容错能力比之前最好的基于纠错码的量子计算提升了约3个数量级，达到了约1%，该容错率是目前实验技术能够达到的水平，这极大地激发了科学家们研制量子计算机的热情。

潘建伟研究团队十多年前就开始了拓扑量子计算的实验研究并取得了一系列研究成果，这包括使用六光子纠缠态模拟了任意子交换的分数统计特性[Phys. Rev. Lett. 102, 030502 (2009)]和使用八光子纠缠态构建了拓扑量子纠错码[Nature 482, 489 (2012)]。上述实验中，由于光子之间不存在相互作用，并未形成Kitaev模型中的拓扑物态，因此在物理层面不具备拓扑保护能力。能否实验制备Kitaev模型所描述的拓扑物态并观测其中的任意子统计，成为量子信息科学中亟待解决的一个重大问题。

针对这一重大问题，该研究团队创造性地搭建了新的实验系统和开发了独特的量子调控技术。Kitaev模型对应的拓扑物态需要粒子之间的相互作用为四体相互作用，而自然界中存在的物质内部粒子相互作用以两体相互作用为主，此前人们从未在任何物质中直接观测到四体相互作用。该团队选择了构建人工量子晶体来实现这一特殊的粒子间相互作用，研发了自旋依赖的超晶格系统来囚禁和操控超冷原子，并在晶格中巧妙地用光极化势形成了有效磁场梯度，抑制了晶格中存在的两体相互作用，使四体相互作用凸显并成为主导该物理系统的主要相互作用，成功操控光晶格中约800个超冷原子同时产生了约200个四原子自旋纠缠态；为了观测晶格中超冷原子的动力学行为，他们开发了高分辨的原位光吸收成像技术，首次观测到了四体环交换相互作用并演示了对此相互作用进行量子调控的能力；进而构建了Kitaev模型的最基本单元哈密顿量，通过微波反转原子自旋的方法，实现了任意子之间的编织交换过程，首次在光晶格体系中直接观测到了任意子交换产生的分数拓扑相位，是Kitaev理论模型提出20年后该体系中任意子分数统计特性的最直接的实验证明。

该研究成果的实现，为人们进一步研究任意子的拓扑性质提供了新的实验平台和手段，将推动拓扑量子计算和晶格规范场量子模拟领域的研究进展。该工作的预印本在arXiv网站一经公布，即获得了学术界同行的广泛兴趣和高度评价，如量子信息领域的国际著名学者、2013年沃尔夫物理学奖获得者Zoller等在《自然·物理》发表的综述文章对该工作的评价为：“使用冷原子实现了一个最小的Kitaev toric-code哈密顿量；这个系统显现了任意子分数统计特性，是拓扑相存在的明白无误的证据。” (“Very recently, ref. 119 reported on the implementation of a minimal toric-code Hamiltonian with cold atoms; this set-up exhibits fractional (anyonic) statistics, an unambiguous signature of topological phases.”)

该工作得到科技部、自然科学基金委、教育部、中科院等单位的资助。

No wonder they are investing billions in this new 37-hectare quantum research facility.

 

[Jlaw]

Most of the recent quantum computer building by american companies like IBM/Google/etc are very primitve concept-proofing prototype that is far slower than today's supercomputer even at these area quantum computer supposed to be good at.

However, world reknown scientist Pan Weijian told the media that China is now building the world fastest quantum computer in China's newly founded State Lab for Quantum Computing in Anhui province.

The computer will bet not only faster than any supercomputer in the world, but actually far far more than that, according to Pan, the computer under development will be 1 million times faster than the combination of the computing power of the entire world's current computing devices.

He told the media that China will also build a password-cracking quantum computer that aiming at cracking passwords within seconds instead years/decades by current supercomputers.
http://mil.news.sina.com.cn/china/2017-09-12/doc-ifykuffc5326378.shtml

Bussard Ramjet:"why are you telling the world this? You should patent it first or build it secretly."

 

[qwerrty]

d-wave is fake quantum computer

http://www.eetimes.com/document.asp?doc_id=1326592

 

[cirr]

China's first commercial quantum private communication network completed

2017-09-13 08:49

Xinhua Editor: Gu Liping

China's first commercial quantum private communication network has been completed in Shandong Province, local government said Tuesday.

The network is exclusively for 242 Party and government users in the provincial capital of Jinan. Hundreds of pieces of equipment connected by hundreds of kilometers of fiber optics were installed within five months.

Based on decoy-state quantum key distribution and trusted relay groups, the network provides secure telephone and data communication services.

The network is expected to be connected to the Beijing-Shanghai quantum communication network.

http://www.ecns.cn/2017/09-13/273318.shtml

 

[cirr]

Top scientist: China's advances in quantum computing leads the world

2018-03-05 15:02 China.org.cn Editor: Li Yan

Pan Jianwei, member of the 13th National Committee of the Chinese People's Political Consultative Conference (CPPCC), takes an interview on March 3, 2018, ahead of the opening of the first session of the 13th CPPCC National Committee at the Great Hall of the People in China's capital, Beijing. (Photo/China.org.cn)

Pan Jianwei, one of the world's leading quantum physicists and a member of the 13th National Committee of the Chinese People's Political Consultative Conference (CPPCC), affirmed on Saturday at the first session of the 13th CPPCC National Committee in Beijing that China expects to make significant breakthroughs in quantum computing in the next three to five years, which will further the field of supercomputing and better safeguard public information. [Special coverage]

Speaking on the sidelines of the first session of the 13th CPPCC National Committee at the Great Hall of the People, Pan, who is an academician at the Chinese Academy of Sciences and vice chairman of the Jiusan Society, said that it has been a longstanding dream of mankind to achieve the secure transmission of information.

"In theory, quantum communication can provide an information transmission mode that cannot be cracked or intercepted," he said. "So it will play a significant role in national defense, government affairs and financial matters, as well as bank transfers and personal privacy."

Dubbed the "Father of Quantum" in China, Pan explained that quantum computing is a very powerful tool: "For example, if we can control 100 particles to solve particular problems, then you will see quantum computing power reach 1 million times that of all the world's computing power combined. So it will solve problems that traditional computers cannot work out, such as weather forecasts, medical design and physical material design."

Pan emphasized that China is already leading the world in quantum communication technology and utilization. Last August, satellite Mozi, also known as Micius, successfully tested space-to-ground quantum key distribution and ground-to-space quantum teleportation. Last September, the world's first 2,000-km quantum communication line went into operation between Beijing and Shanghai.

"We hope that through Chinese scientists' efforts over the next five to 10 years, we can build an integrated space-and-terrestrial encrypted quantum communication network to guard information security for hundreds of millions of households in China," he said.

Last year, Chinese scientists also built the world's first multi-photon quantum computing prototype. According to Pan, China's quantum scientists plan to realize relevant manipulation of 50 quantum particles in three to five years, creating computing power on par with the fastest conventional supercomputer in certain problem-solving contexts.

Pan also stated that while international competition in this field is fierce, Chinese scientists are thrilled that China's central government has given it great focus. In the 13th Five-year Plan (2016-2020), quantum communication is listed as one of the nation's areas for heavy investment, including the establishment of a new national laboratory for the field.

"We hope we can amass all the relevant scientific powers of the nation to build collaborative innovation," Pan said. "We are very confident we'll continue to lead the world."

http://www.ecns.cn/2018/03-05/294624.shtml

 

[TaiShang]

He told the media that China will also build a password-cracking quantum computer that aiming at cracking passwords within seconds instead years/decades by current supercomputers.

This would enable China to elect US presidents for many years to come.

d-wave is fake quantum computer

http://www.eetimes.com/document.asp?doc_id=1326592

US is becoming a second SP12.

Aren't I right, India friend @F-22Raptor ?

 

[AViet]

I am happy with the daily advancement of our Chinese brothers.

 

[NoOne'sBoy]

come back when you are done building

 

[meis]

I am happy with the daily advancement of our Chinese brothers.

Brother, huh? Whatever. All you could do is watch in envy. Poor thing.

 

[Shajida Khan]

d-wave is fake quantum computer

http://www.eetimes.com/document.asp?doc_id=1326592

As if you have enough knowledge about it... Learn the difference between a 'Universal Quantum Computer' and a 'Quantum Circuit'. It is a quantum computer all right, not a Turing Complete quantum machine.