Quantum / CONCEPT
A four-dimensional counterexample to the improved swapping bound
The improved product bound for entanglement swapping conjectured by Starke, Basso, Celeri and Maziero fails for two identical partially entangled ququarts: the average is 723/625, whereas the proposed bound is 507/625.
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DIRECT CONSEQUENCES1
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The bound fails in dimension four
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Proof dependencyStructural affinityDocument link
Certified topology / UPSTREAM
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Certified topology / DOWNSTREAM
Consequences
RELATED KNOWLEDGE
Structural connections
- EntropyReductionstructural-affinity · Closed
- HermiteEntropystructural-affinity · Closed
- HiguchiSudberyEntropyMaximumstructural-affinity · Closed
- HS4Assemblystructural-affinity · Closed
- PrimeHierarchyCertificatestructural-affinity · Closed
- PrimeReflectionstructural-affinity · Closed
- Projective Interior Probability Fibersstructural-affinity · Closed
- ReflectionEvaluationstructural-affinity · Closed
- SparseReflectionstructural-affinity · Closed
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