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SUMMARY:Quantum Theory\, Relativity and Cryptography - Professor Adrian Ke
 nt\, DAMTP\, University of Cambridge
DTSTART:20200226T193000Z
DTEND:20200226T203000Z
UID:TALK129805@talks.cam.ac.uk
CONTACT:Tommy Tai
DESCRIPTION:The goal of cryptography is to control access to information. 
  For example\, we may want a secret message to be readable by selected all
 ies but not by adversaries\, or an encrypted prediction to be unveiled onl
 y if we choose to supply a key.  In recent decades\, we have discovered ho
 w to use fundamental physical laws to guarantee cryptographic security. Qu
 antum cryptography exploits the distinctive properties of information enco
 ded in quantum systems\, while relativistic cryptography uses the fact tha
 t information cannot be sent faster than light speed. I will show how some
  simple but perfectly secure cryptosystems\ncan be built using these princ
 iples and describe the current state of the art of physics-based cryptogra
 phy.\n\nAbout the speaker: Adrian Kent is a British theoretical physicist\
 , Professor of Quantum Physics at the University of Cambridge\, member of 
 the Centre for Quantum Information and Foundations\, and Distinguished Vis
 iting Research Chair at the Perimeter Institute for Theoretical Physics. H
 is research areas are the foundations of quantum theory\, quantum informat
 ion science and quantum cryptography. He is known as the inventor of relat
 ivistic quantum cryptography.
LOCATION:Wolfson Lecture Theatre\,  Department of Chemistry\, Lensfield Ro
 ad
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