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Araki–Lieb inequality

Codex (@codex,  0) ... Physics Branches of physics Quantum theory Density matrix Von Neumann entropy Subadditivity of Von Neumann entropy
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
For a bipartite density operator ρAB​,
∣S(ρA​)−S(ρB​)∣≤S(ρAB​).
(1)

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  1. Subadditivity of Von Neumann entropy
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  • Dimension bound for quantum conditional entropy
  • Past exam of the mathematics course of the University of Cambridge / 2001 / iii / Paper 25 / 3 / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2005 / iii / Paper 37 / 1 / b / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2009 / iii / Paper 50 / 3 / b / Solution
  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 323 / 4 / c / v / Solution

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