Category Archives: quantum computation

Subatomic quantum memory in diamond demonstrated

From PhysOrg.com:

Physicists working at the University of California, Santa Barbara and the University of Konstanz in Germany have developed a breakthrough in the use of diamond in quantum physics, marking an important step toward quantum computing. The results are reported in this week’s online edition of Nature Physics.

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The quantum computer is growing up: Repetitive error correction demonstrated

From University of Innsbruck:

A team of physicists at the University of Innsbruck, led by Philipp Schindler and Rainer Blatt, has been the first to demonstrate a crucial element for a future functioning quantum computer: repetitive error correction. This allows scientists to correct errors occurring in a quantum computer efficiently. The researchers have published their findings in the scientific journal Science.

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D-Wave researchers demonstrate progress in quantum computing

From PhysOrg.com:

Taking another step toward demonstrating quantum behavior in a quantum computer, researchers from the Vancouver-based company D-Wave Systems, Inc., have performed a technique called quantum annealing, which could provide the computational model for a quantum processor. They have published a study describing the demonstration in a recent issue of Nature.

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Quantum simulation with light: Frustrations between photon pairs

From PhysOrg.com:

Researchers of the University of Vienna used a quantum mechanical system in the laboratory to simulate complex many-body systems. This experiment promises future quantum simulators enormous potential insights into unknown quantum phenomena.

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Scientists view a quantum jump in real time

From PhysOrg.com:

Hopefully, this will lead us one step closer to realizing a quantum computer. “In order to correct errors which will occur in any realistic quantum computer, we need to detect them quickly and efficiently,” Siddiqi points out. “Now that we have shown that it is possible to track changes in the quantum state in real time, it should be possible to apply this functionality to quantum information processing.”

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14 quantum bits: Physicists go beyond the limits of what is currently possible in quantum computation

From PhysOrg.com:

Quantum physicists from the University of Innsbruck (Austria) have set another world record: They have achieved controlled entanglement of 14 quantum bits (qubits) and, thus, realized the largest quantum register that has ever been produced. With this experiment the scientists have not only come closer to the realization of a quantum computer but they also show surprising results for the quantum mechanical phenomenon of entanglement.

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