Quantum / CONCEPT
HiguchiSudberyEntropyMaximum
The explicit Higuchi–Sudbery state attains the sharp upper bound for the average two-qubit marginal entropy.
Closed
DIRECT PREREQUISITES3
DIRECT CONSEQUENCES0
PROOF DEPTH9
DOCUMENT LINKS1
Sharp global bound and attainment
RELATIONSHIP ATLAS
Every connection, in context.
Direct recorded relationships
Proof dependencyStructural affinityDocument link
Certified topology / UPSTREAM
Prerequisites
Certified topology / DOWNSTREAM
Consequences
None recorded in this release.
RELATED KNOWLEDGE
Structural connections
- A four-dimensional counterexample to the improved swapping boundstructural-affinity · Closed
- HS4Assemblystructural-affinity · Closed
- Input Information Balancestructural-affinity · Closed
- Oblique discord: mutual information can increasestructural-affinity · Closed
- PrimeHierarchyCertificatestructural-affinity · Closed
- PrimeReflectionstructural-affinity · Closed
- Pure-state ECQC fails in dimension fivestructural-affinity · Closed
- ReflectionEvaluationstructural-affinity · Closed
- The four-qubit Fredkin gate generates more than two ebits across AD:BCstructural-affinity · Closed
Documents & exposition
Other authored & advisory relationships
None recorded in this release.
LIBRARY / RELEASE VERSIONS
Content history
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