News tagged with quantum information

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 ...

dateJul 16, 2012 in Quantum Physics
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The entropy of black holes

Yesterday I talked about black hole thermodynamics, specifically how you can write the laws of thermodynamics as laws about black holes. Central to the idea of thermodynamics is the property of entropy, which c ...

dateSep 12, 2014 in Astronomy
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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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