News tagged with quantum information

Quantum eavesdropper steals quantum keys

(PhysOrg.com) -- In quantum cryptography, scientists use quantum mechanical effects to encrypt and then communicate confidential information. Although quantum cryptography codes are unbreakable in principle, even the best ...

dateJun 20, 2011 in Quantum Physics report
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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 ...

dateDec 29, 2014 in Quantum Physics
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Putting the squeeze on quantum information

Canadian Institute for Advanced Research researchers have shown that information stored in quantum bits can be exponentially compressed without losing information. The achievement is an important proof of principle, and could ...

dateSep 25, 2014 in Quantum Physics
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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 ...

dateSep 24, 2014 in Quantum Physics
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