Showing posts with label China. Show all posts
Showing posts with label China. Show all posts

Wednesday, August 17, 2016

China Launches World's 1st Hack-Proof Quantum Communication Satellite



China has taken one more step forward towards achieving success in Quantum communication technology.


China has launched the world's first quantum communications satellite into orbit aboard a Long March-2D rocket earlier today in order to test the fundamental laws of quantum mechanics at space.



'Hack-Proof' Communications System

The satellite, dubbed Quantum Science Satellite, is designed to develop a 'Hack-Proof' communications system in this age of global electronic surveillance and cyber attacks by transmitting uncrackable encryption keys from space to the ground.

The 600-plus-kilogram Quantum Science Satellite, better known as Quantum Experiments at Space Scale (QUESS) satellite, took off from the Jiuquan Satellite Launch Center in Gobi Desert at 1:40 AM local time on a 2-year mission on Tuesday.


The QUESS satellite will help China perform unprecedented levels of experiments in quantum communication by sending entangled photons from the satellite to relay stations in China and Europe, which is separated by about 1,200 kilometers (746 miles).


The pioneering experiment is to test if the spooky property of quantum entanglement can work at long distances as well.


The satellite's payloads include:


  • Quantum key communicator
  • Quantum entanglement emitter
  • Quantum entanglement source
  • Quantum experiment controller
  • Processor
  • Laser communicator

The payloads, designed to operate for two years, were developed by the National Space Science Center in Beijing under the Chinese Academy of Sciences.


The QUESS satellite will also test the possibilities of communication via quantum 'teleportation,' using an entangled pair of photons.



If the satellite is able to successfully transmit quantum information securely between two ground stations, it could have huge implications for encryption and cryptography.


China has largely been ambitious to realize the importance of Quantum technology. From past two decades, Quantum technology has been a top strategic focus in the country's 5-year economic development plan.


While the United States invested about $200 Million a year in quantum research, China spent $101 Billion in quantum physics in 2015, up from $1.9 Billion in 2005.



China Invests Billions of Dollars in Quantum Technology


Quantum communication encryption is secure against any kind of interception because information is encoded in a quantum particle in such a way that it will be destroyed as soon as the system detects any intrusion attempts.


For example, when two people share an encrypted quantum message and a third person intercepts it, the message will change in an unpredictable way.


Quantum researchers have recently experimented the use of photons to successfully communicate securely over short distances on earth.


But if successful, the QUESS satellite would vastly expand the range of unhackable communication to long distances as well.

"The newly-launched satellite marks a transition in China's role - from a follower in classic information technology development to one of the leaders guiding future achievements," Pan Jianwei, the scientist who is leading the project, told the official Xinhua news agency.



If successful, the QUESS satellite would be the world's first transcontinental quantum key distribution network of its kind and China hopes to erect a global quantum communications network in 2030.


"If China is going to send more quantum communication satellites into orbit, we can expect a global network of quantum communications to be set up around 2030," Pan added.

Thursday, June 23, 2016

China Made the World's Fastest & Powerful Super Computer without US chips



China beats its own record with the World's fastest supercomputer.


Sunway TaihuLight, a newly built supercomputer from China, now ranks as the world's most powerful machine.


During the International Supercomputer Conference in Germany on Monday, Top500 declared China's 10.65 Million-core Sunway TaihuLight as the world's fastest supercomputer. Moreover, the supercomputer is leading by a wide margin, too.


With 93 petaflops of processing power, Sunway TaihuLight is nearly three times more powerful than the world’s previous fastest supercomputer, Tianhe-2, which had been the world's fastest computer for last 3 years with speeds of 33.9 petaflops per second.



That's 93 quadrillion floating point operations per second (FLOP), which means the supercomputer can perform around 93,000 trillion calculations per second, at its peak.


The Sunway TaihuLight supercomputer is installed at the National Supercomputing Centre in Wuxi.


"Sunway TaihuLight, with 10,649,600 computing cores comprising 40,960 nodes," is one of the world's most efficient systems, with "peak power consumption under load (running the HPL benchmark)" at a relatively modest 15.37 Megawatts of energy consumption.



What's the irony?


The microprocessors inside Sunway TaihuLight are 100 percent Chinese.


Sunway TaihuLight is powered entirely by Chinese processors (the 260-core ShenWei 26010) and runs on a custom Linux-based operating system.

Speaking of the TOP500 list, the National Supercomputing Centre's director, Professor Dr. Guangwen Yang said:

"As the first number one system of China that is completely based on homegrown processors, the Sunway TaihuLight system demonstrates the significant progress that China has made in the domain of designing and manufacturing large-scale computation system."

In the past, China relied heavily on American processors for its supercomputers, but the US thought that China was using the Tianhe-2, which was built with Intel cores, to run its nuclear simulations.


Due to this reason, the United States government banned Intel from exporting its powerful Xeon processors over a year ago to a number of Chinese supercomputer makers.



China is Leading the World in Supercomputing


The US decision did not halt the Chinese progress. Instead, it seems like the US policy has made an opposite effect.


For the first time since the Top500 list began, China has overtaken the United States in the amount of supercomputers being used. China has 167 computers in the top 500 while the US has 165.


"Considering that just 10 years ago, China claimed a mere 28 systems on the list, with none ranked in the top 30, the nation has come further and faster than any other country in the history of supercomputing," said the latest Top500 announcement.

Sunway TaihuLight will be used in scientific research and engineering work in fields including life science research, data analytics, advanced manufacturing and climate, weather and Earth systems modeling.