News tagged with quantum information

A qubit candidate shines brighter

In the race to design the world's first universal quantum computer, a special kind of diamond defect called a nitrogen vacancy (NV) center is playing a big role. NV centers consist of a nitrogen atom and ...

Dec 29, 2014
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Record quantum entanglement of multiple dimensions

An international team directed by researchers from the Austrian Academy of Sciences, with participation from the Universitat Autònoma de Barcelona, has managed to create an entanglement of 103 dimensions with only two photons. ...

Mar 27, 2014
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Quantum engines must break down

Our present understanding of thermodynamics is fundamentally incorrect if applied to small systems and needs to be modified, according to new research from University College London (UCL) and the University of Gdańsk. The ...

Jun 26, 2013
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Long-range tunneling of quantum particles

The quantum tunnel effect manifests itself in a multitude of well-known phenomena. Experimental physicists in Innsbruck, Austria, have now directly observed quantum particles transmitting through a whole ...

Jun 12, 2014
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Physicists build first single-photon router

(PhysOrg.com) -- By demonstrating that an artificial atom embedded in a transmission line can route a single photon from an input port to one of two output ports, physicists have built the first router working ...

Aug 22, 2011 feature
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Are weak values quantum? Don't bet on it

(Phys.org) —New work asserts that a key technique used to probe quantum systems may not be so quantum after all, according to Perimeter postdoctoral researcher Joshua Combes and his colleague Christopher ...

Sep 24, 2014
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