News tagged with quantum systems

Qubits in the quantum sea

(Phys.org)—"Quantum weirdness," a phrase related to the power and the un-intuitive nature of quantum reality, is expected to facilitate speeded-up computation—quantum computing—for performing certain ...

dateSep 10, 2012 in Quantum Physics
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Measuring quantum dimensions

(Phys.org) -- A new study from the ICFO (Institute of Photonic Sciences) in Barcelona and the University of Bristol has demonstrated how the dimension of an unknown quantum system can be assessed from measurement data alone. ...

dateJun 18, 2012 in Quantum Physics
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A magnetic approach to lattices

(Phys.org) -- JQI experimentalists under the direction of Ian Spielman are in the business of using lasers to create novel environments for neutral atoms. For instance, this research group previously enticed ...

dateMay 22, 2012 in General Physics
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Simplicity and quantum complexity

Simulations of reality would require less memory on a quantum computer than on a classical computer, new research from scientists at the University of Bristol, published in Nature Communications, has shown.

dateMay 04, 2012 in Quantum Physics
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Quantum copies do new tricks

One of the strange features of quantum information is that, unlike almost every other type of information, it cannot be perfectly copied. For example, it is impossible to take a single photon and make a number of photons ...

dateMar 22, 2012 in Quantum Physics
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Electrical circuits talk to single atoms

(PhysOrg.com) -- If a practical quantum computer is ever to be realized, conventional electronic devices will have to interface with the delicate quantum systems such as atoms or ions in traps or wisps of ...

dateMar 06, 2012 in Quantum Physics
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Argon cleaning helps trapped ions chill out

(PhysOrg.com) -- The reliability of trapped-ion quantum information systems – a promising candidate technology for an eventual quantum computer – can be dramatically improved by giving the trap electrodes ...

dateFeb 28, 2012 in General Physics
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Quantum cats are hard to see

Are there parallel universes? And how will we know? This is one of many fascinations people hold about quantum physics. Researchers from the universities of Calgary and Waterloo in Canada and the University ...

dateDec 16, 2011 in Quantum Physics
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