Showing posts with label Quantum. Show all posts
Showing posts with label Quantum. 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.

Friday, May 6, 2016

Quantum Computers.. Now a Reality - IBM launches Publicly


Quantum computers are expected to take the computing technology to the highest level, but it is an experimental and enormously complex technology that Google and NASA are working on and is just a dream for general users to play with.

Hold on! IBM is trying to make your dream a reality.

BM just made its new quantum computing project online (with tutorials), making it available for free to anyone interested in playing with it.

Quantum Computers — Now A Reality!


The technology company said on Wednesday that it is giving the world access to one of its quantum computing processors, which is yet an experimental technology that has the potential to perform much faster calculations than today's computers.

You can now access IBM's five-qubit quantum computing processor, which is located at its a research center in Yorktown Heights, New York, through the cloud to run experiments and test applications.

All you will need to do is request an invitation from IBM through a web form that will ask for your institution details and your level of computing experience.

Quantum Computers Vs. Regular Computers ?


Quantum computers can theoretically be much faster than traditional computers because they take advantage of quantum mechanics.

While traditional computers use the "bits" to represent information as a 0 or a 1, Quantum computers use quantum bits or "qubits" to represent information as a 0, 1, or both at the same time. This means that 2 qubits could potentially have 4 values at the same time: 00, 01, 10, and 11.

In other words, a quantum computer with just 50 qubits will be much more powerful than any supercomputer available today.

360° Tour of the IBM Research Quantum Lab:


According to IBM, its five-qubit quantum computing processor is just a "small step" towards a useful quantum computer, though the company hopes to build a quantum computer with a medium-size quantum processor of 50-100 qubits within the next 10 years.

With a step ahead in the quantum computing, IBM's qubit processor is the world's first quantum processor accessible to the public, even if through the cloud.

Users who want to access the quantum processor can stay in the comfort of their homes or offices and work with qubits, study tutorials, and run simulations using the cloud and their computers or mobile devices.

Saturday, December 12, 2015

Google Quantum Computer : 100X Faster than a PC


Announcing the results of its experiment, Google says Quantum Computer is More than 100 Million times faster than a regular PC.

Two years ago, Google and NASA (National Aeronautics and Space Administration) bought a D-Wave 2X quantum computer, which they have been experimenting at the U.S. space agency's Ames Research Center in Mountain View, California for the past two years.

The goal is to create a better way to solve highly complex problems in seconds rather than years.

Now, a Google's Quantum AI team appears to have announced the results of its latest test on D-Wave 2X quantum computer, demonstrating that quantum annealing can outperform simulated annealing by over 108 times – that is 100,000,000 times faster.

What is Quantum Computers?


Quantum computers can theoretically be so much faster because they take advantage of quantum mechanics. While traditional computers use the "bits" to represent information as a 0 or a 1, quantum computers use "qubits" to represent information as a 0, 1, or both at the same time.

In turn, this allows Quantum computers to achieve a correct answer much faster and efficiently through parallel processing.

Google's D-Wave 2X Quantum Computer:

Now, the Google Quantum Artificial Intelligence Lab has announced that its D-Wave machine is considerably much faster than simulated annealing – quantum computation simulation on a classical computer chip.

"We found that for problem instances involving nearly 1000 binary variables, quantum annealing significantly outperforms its classical counterpart, simulated annealing. It is more than 108 times faster than simulated annealing running on a single core," said Hartmut Neven, Google's director of engineering.


Google: Our Quantum Machine is 100 Million Times Faster

Google has also published a paper [PDF] on the findings, claiming that the team was able to perform a calculation with the quantum computing technology that was significantly faster than a conventional computer with a single core processor.

The researchers emphasized that their research on quantum computing is still in the early stages and has yet to be commercialized which could take decades.

"While these results are intriguing and very encouraging, there is more work ahead to turn quantum enhanced optimization into a practical technology," Neven wrote.


However, the team of Google and NASA researchers announced on Tuesday that the tests on D-Wave machines using Quantum Monte Carlo algorithm simulates running an optimization problem on ordinary silicon, and again the results were more than 100 Million times faster than a conventional computer