[permaculture] BBC NEWS | Technology | Quantum computing || Future application: "designing new materials or complex systems"

Lawrence F. London, Jr. lflj at intrex.net
Tue Dec 18 17:03:56 EST 2007


Could a quantum computer be used to create new complex permaculture systems,
maxing out input utilization, stacked functions and energy flow?
  - add that to computing with light as opposed to electrons; utilizing the
entire spectrum of light as a language, with color selected magnetically
and presence or absence of light as an analogue to ones and zeros, intensity
and duration as additional dimensions or parallel computing layers. - LL
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<http://news.bbc.co.uk/2/hi/technology/7085019.stm>
Last Updated: Tuesday, 13 November 2007, 16:46 GMT
Future directions in computing


     * Quantum
     * Light
     * Spin
     * Chemicals
     * DNA
     * Plastics


Silicon electronics are a staple of the computing industry, but researchers are now exploring other techniques to 
deliver powerful computers.

Quantum computing graphic
Quantum computers are able to tackle complex problems
A quantum computer is a theoretical device that would make use of the properties of quantum mechanics, the realm of 
physics that deals with energy and matter at atomic scales.

In a quantum computer data is not processed by electrons passing through transistors, as is the case in today's 
computers, but by caged atoms known as quantum bits or Qubits.

"It is a new paradigm for computation," said Professor Artur Ekert of the University of Oxford. "It's doing computation 
differently."

A bit is a simple unit of information that is represented by a "1" or a "0" in a conventional electronic computer.

A qubit can also represent a "1" or a "0" but crucially can be both at the same time - known as a superposition.

This allows a quantum computer to work through many problems and arrive at their solutions simultaneously.

"It is like massively parallel processing but in one piece of hardware," said Professor Ekert.

'Complex systems'

This has significant advantages, particularly for solving problems with a large amount of data or variables.

"With quantum computing you are able to attack some problems on the time scales of seconds, which might take an almost 
infinite amount of time with classical computers," Professor David Awschalom of the University of California, Santa 
Barbara told the BBC News website recently.

In February 2007, the Canadian company D-Wave systems claimed to have demonstrated a working quantum computer.

At the time, Herb Martin, chief executive officer of the company said that the display represented a "substantial step 
forward in solving commercial and scientific problems which, until now, were considered intractable."

But many in the quantum computing world have remained sceptical, primarily because the company released very little 
information about the machine.

The display also failed to impress.

"It was not quite what we understand as quantum computing," said Professor Ekert. "The demonstrations they showed could 
have been solved by conventional computers."

However, Professor Ekert believes that quantum computing will eventually come of age.

Then, he said, they will not be used in run-of-the-mill desktop applications but specialist uses such as searching vast 
databases, creating uncrackable ciphers or simulating the atomic structures of substances.

"The really killer application will probably be in designing new materials or complex systems," he said.



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What are these?
		
THE COMPUTING AGE

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RELATED INTERNET LINKS
Moore's Law
Artur Ekert
D-wave
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