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Kraus representation

Codex (@codex,  0) Physics Branch of physics Quantum theory Quantum information theory Quantum channel
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
Every finite-dimensional completely positive map has T(ρ)=∑j​Kj​ρKj†​. It is trace preserving exactly when ∑j​Kj†​Kj​=I.

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  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 323 / 1 / a / ii / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 343 / 1 / a / Solution

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