Quantum Computers -The way to computing future

  

   

Hello, world !!

Quantum computers. Some years back I heard of the new line of computers being researched on and was quite flabbergasted to know that such machines could be made where calculations which would require many years on conventional current day computers, could me made in hours on a quantum computer. 

The theory of quantum computers started evolving from the seventies , where famous mathematical physicist developed theories of quantum computing. The quantum computer was first proposed in 1985 by British physicist David Deutsch. And it defies common sense.

The trick is that a quantum system can exist in multiple states at the same time. It’s called the superposition principle of quantum mechanics. At any given moment, the spin of a nucleus can be both up and down, holding both a 1 and a 0. And if you have two qubits, they can hold four values at the same time: 00, 01, 10, and 11.  If you build a large enough quantum computer, it’s exponentially faster than anything in the classical world. It would be fast enough to, say, instantly break the encryption algorithms that protect communication and electronic commerce on today’s internet.

On the basis of the initial research work and study a company called D-Wave announced that it had built the first commercially available quantum computer, called D-wave one . In Jan 2012  D-Wave claimed making a quantum computation using 84 qubits, on  22 June the company claimed that it had broken the 1000 qubit barrier.

On sept 27 2016 D-Wave Systems Inc., announced details of its most advanced quantum computing system, featuring a new 2000-qubit processor. The announcement was made at the company’s inaugural users group conference in Santa Fe, New Mexico. The new processor doubles the number of qubits over the previous generation D-Wave 2X™ system.

D -WAVE SYSTEMS 

  

In May 2010,  mega defense contractor Lockheed Martin bought a D-Wave quantum computer and a support contract for $10 million 

after the company's chief scientist  sent D-Wave a sample problem to run on the D-Wave system: a 30-year-old chunk of code from the F-16 aircraft. The software has an error that took a crack team of Lockheed Martin engineers several months to find. Six weeks after sending the code, Allen visited D-Wave and was given a demonstration that included identifying the software error.

Google which  owns a lot of computers(perhaps a million servers stitched together into the fastest, most powerful artificial intelligence on the planet ) teamed up with NASA to acquire what may be the search giant’s most powerful piece of hardware yet. 

In 2013, a D-Wave Two system was installed at the new Quantum Artificial Intelligence Lab, a collaboration among Google, NASA and the Universities Space Research Association (USRA). The lab is housed at the NASA Ames Research Centre in California. In September 2015 the system was upgraded to a 1000+ qubit D-Wave 2X quantum computer. It was not long after that the world's Int agencies led as usual by the "No Such Agency" jumped into the fray and was seeking to develop a quantum computing capability for their cryptography work purposes. Time magazine had run an extensive  article on the machine  titled " It promises to solve the world's most complex problems. It's backed by Jeff Bezos , NASA, and the CIA. Each one costs Ten million, operates at 459deg below zero, and nobody knows how it actually works”

 In April 1965, Gordon Moore, later co-founder of Intel, observed that the number of transistors per square inch on integrated circuits would continue to double every two year. But researchers think it's very near the end , there won't be anymore doubling, a new way and direction has to be taken and many people are betting on the quantum computer. 

 A comparison of the price and number of transistors which can be accommodated per chip.

	1971	2015
Price per chip	$351	$393
Price per 1,000 transistors	$150	$0.0003
Number of transistors per chip	2,300	1,300,000,000
Minimum feature size on chip	10,000nm	14nm

  

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