News tagged with quantum systems

Better tests for Schrodinger cats (Updated)

In a classical world, objects have pre-existing properties, physical influences are local and cannot travel faster than the speed of light, and it is in principle possible to measure the properties of macroscopic systems ...

dateApr 18, 2016 in Quantum Physics
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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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Quantum entanglement with notification

(Phys.org) -- German scientists have demonstrated a method of heralding entanglement between distant stationary quantum systems without destroying this particular state. The experimental set-up paves the way towards quantum ...

dateJul 16, 2012 in Quantum Physics
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