quantum computing

A quantum computer is a computation device that makes direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), quantum computation uses quantum properties to represent data and perform operations on these data.[1] A theoretical model is the quantum Turing machine, also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. One example is the ability to be in more than one state simultaneously. The field of quantum computing was first introduced by Yuri Manin in 1980[2] and Richard Feynman in 1981.[3][4] A quantum computer with spins as quantum bits was also formulated for use as a quantum space-time in 1969.[5]

For more information about quantum computing check the Wikipedia article here

ZME Science posts about quantum computing

New technique bypasses Heisenberg’s Uncertainty Principle

Mon, Mar 4, 2013

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A group of researchers at University of Rochester and the University of Ottawa have found a way to bypass Heisenberg’s famous Uncertainty Principle, and measure key quantum properties directly for the first time like the polarization states of light. The technique might provide valuable in encoding qubits, the building blocks of quantum information theory. Heisenberg’s Uncertainty Principle [...]

Organic topological insulator demonstrated for first time

Thu, Feb 14, 2013

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Researchers at University of Utah have recently demonstrated that it is indeed feasible to construct a topological insulator from organic compounds. Topological insulators are deemed very important by scientists because of their unique property of conducting electrons on their edges, while at the same time acting as an insulator on the inside. These capabilities make it [...]

Scientists devise qubits in a semiconductor for the first time

Mon, Mar 26, 2012

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Hailed as yet another big step towards devising working quantum computers, scientists at Ruhr-Universität Bochum (RUB) have successfully managed to generate quantum qubits inside a semiconductor for the first time, instead of vacuum. A qubit is the quantum analog of a bit. While a bit must be read either as a 0 or 1, the qubit can [...]

IBM makes significant breakthrough towards scalable quantum computers

Tue, Feb 28, 2012

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During the past months we’ve been reporting several breakthroughs in the field of quantum computing, and now IBM seems ready to truly pave the way for quantum computers. Researchers announced they are now able to develop a superconducting qubit made from microfabricated silicon that maintains coherence long enough for practical computation. Whoa! That probably sounds [...]

Scientists cool semiconductor with laser light

Mon, Jan 23, 2012

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By harnessing the science of both quantum and nano physics, scientists at the Niels Bohr Institute have come up with an innovative new way of cooling semiconductor membranes by using laser light. Through this new technique, the researchers were able to cool the tiny, thin membrane from room temperature to -269 degrees Celsius. Paradoxically, the [...]

IBM develops smallest storage device: 12 atoms for a single bit!

Sat, Jan 14, 2012

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Moore’s law states that the level of technology and computing power should double every two years, and so far the postulate hasn’t been wrong in more than 50 years. A group of IBM scientists have now managed to develop a data storage technique which allows for information to be stored with as little as 12 [...]

Quantum computing breakthrough: quantum photonic chip created

Mon, Dec 12, 2011

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Scientists at University of Bristol‘s Centre for Quantum Photonics have remarkably managed to create a multi-purpose optical chip capable of manipulating and measuring quantum entanglement and mixture – two important quantum effects which have been giving researchers headaches for a long time, but which can now be controlled and used to characterize quantum circuits. This [...]

Truly random numbers might be generated with quantum physics

Tue, Nov 29, 2011

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Does flicking a dice really render a random face? The answer would be no. The dice is governed by large-scale conventional physics and its motion, and thus final position can be determined. You can’t tell where it lands just by looking at it thwirl, of course, but the fact remains it’s not random, and neither [...]

Quantum computers one step closer to reality

Wed, Oct 5, 2011

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Physicists from Rice University have made an important break through in the field of quantum computing, after creating a tiny “electron superhighway”, critical for the development of the first working quantum computer. The quantum computer is thought to revolutionize the computing scene of the future, and is believed by many to hold the same impact [...]

IBM is building the largest data array in the world – 120 petabytes of storage

Mon, Aug 29, 2011

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IBM recently made public its intentions of developing what will be upon its completion the world’s largest data array, consisting of 200,000 conventional hard disk drives intertwined and working together, adding to 120 petabytes of available storage space. The contract for this massive data array, 10 times bigger than any other data center in the [...]

Quantum information stored in a single atom

Mon, May 2, 2011

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It’s amazing where computer science is heading to, and with quantum computing getting more and more popular, the trend of evolving towards smaller and smaller scales has just reached another level – an atomic level. Gerhard Rempe at the Max Planck Institute of Quantum Optics in Garching have stored quantum information in a single atom! [...]

Shorties: Teleporting light could bring breakthrough in quantum computing

Tue, Apr 19, 2011

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The laws of quantum physics are strange, but they do allow some pretty awesome stuff, which wouldn’t otherwise be possible in our day to day life. Perhaps one of the most interesting developments they could bring come from the world of quantum computers. The fact that researchers have successfully teleported light without losing information could [...]

Diamonds could be used to store quantum information

Mon, Mar 28, 2011

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Quantum computing is the regarded by many as the future of computing technology, which among endless applications might help scientists answer a lot of questions otherwise impossible with today’s technology. In a nutshell, the difference between today’s computers and the future’s quantum computers is that the first handle binary code 1 and 0 one at [...]

Big leap for quantum computing

Wed, Mar 23, 2011

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Quantum computers – closer thank you think   The microprocessors used today are absolutely amazing on their own; it seemed, and for good reason, that there was little we could do to improve them. If anything was to top microprocessors, it would have to be something from a totally different league, which is just down [...]

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