Sunday, July 27, 2008

And now for something completely different, Quantum Computing!

I was browsing the feeds in my Gmail account, and I found this link, and I'll quote what it says.

ScienceDaily (June 17, 2007) — Researchers at Delft University of Technology have succeeded in carrying out calculations with two quantum bits, the building blocks of a possible future quantum computer. The Delft researchers are publishing an article about this important step towards a workable quantum computer in this week's issue of Nature.

Quantum computers have superior qualities in comparison to the type of computers currently in use. If they are realised, then quantum computers will be able to carry out tasks that are beyond the abilities of all normal computers.

A quantum computer is based on the amazing properties of quantum systems. In these a quantum bit, also known as a qubit, exists in two states at the same time and the information from two qubits is entangled in a way that has no equivalent whatsoever in the normal world.

It is highly likely that workable quantum computers will need to be produced using existing manufacturing techniques from the chip industry. Working on this basis, scientists at Delft University of Technology are currently studying two types of qubits: one type makes use of tiny superconducting rings, and the other makes use of 'quantum dots'.

Now for the first time a 'controlled-NOT' calculation with two qubits has been realised with the superconducting rings. This is important because it allows any given quantum calculation to be realised.

The result was achieved by the PhD student Jelle Plantenberg in the team led by Kees Harmans and Hans Mooij. The research took place within the FOM (Dutch Foundation for Fundamental Research on Matter) concentration group for Solid State Quantum Information Processing.

This is really amazing! Quantum computers are computers that instead of using the presence or lack thereof of an electron to calculate, they use electron spin and quantum interaction to calculate, thereby going beyond the familiar binary base to a more advanced and powerful computing language! This kind of calculation has been theorized for years, but here it is being put to use! This is cool, soon this technology can be harnessed, and then you will begin to see quantum computing start to show up in your everyday life. Mark this, people, this is a technological turning point!

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