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DTSTART:20260308T070000
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DTSTART:20251102T060000
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DTSTART;TZID=America/Toronto:20260930T100000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/crypto-readi
 ng-group-quantum-computing-quantum-information
SUMMARY:Crypto Reading Group on quantum computing | Quantum Information The
 ory
CLASS:PUBLIC
DESCRIPTION:SPEAKER:\n Elnaz Hessami Pilehrood & Owen Waldon \n\nAFFILIATI
 ON:\n University of Waterloo\n\nROOM:\n MC 5501\n\nABSTRACT: Pure quantum
  states describe systems whose preparation is\nknown exactly\, but realist
 ic quantum information often involves\nuncertainty\, inaccessible subsyste
 ms\, and interactions with the\nenvironment. In this talk\, we introduce d
 ensity operators as a general\nframework encompassing both pure and mixed 
 states. We then discuss\nquantum channels\, which model physical transform
 ations and common\nforms of noise affecting quantum systems. Finally\, we 
 introduce\nclassical and quantum entropy as measures of uncertainty and\ni
 nformation\, and explain how these ideas provide basic intuition for\nquan
 tum cryptographic security.
DTSTAMP:20260928T194714Z
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