Well, as this BBC news explains better (which I've come across while browsing the news) it seems bells for the current ways computing have started to sound.
It says that: Quantum computers exploit the counterintuitive fact that photons or trapped atoms can exist in multiple states or "superpositions" at the same time... While traditional or "classical" computers find factoring large numbers impracticably time-consuming, for example, quantum computers can in principle crack the problem with ease."
Although they are at the very early stage now and only a lab test chip has been made, but as we all know how fast the computer technology moves we can start seeing them "around" in near future.
Apparently, these new Optical computers has been touted as a potential future for information processing, by using packets of light instead of electrons as the information carrier.
"But these packets, called photons, are also endowed with the indeterminate properties that make them quantum objects - so an optical computer can also be a quantum computer.
In fact just this kind of photon-based quantum factoring has been accomplished before, but the ability to put the heart of the machine on a standard chip is promising for future applications of the idea."
The BBC news:
http://news.bbc.co.uk/1/hi/sci/tech/8236943.stm
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