Quantum / CONCEPT
Exact Riemannian contraction coefficients of a qubit CQ channel
The dual WY, geometric and BKM Riemannian contraction coefficients of the non-unital qubit CQ channel equal the three bounds in Hiai and Ruskai's Conjecture 6.3. Each supremum is attained at the maximally mixed input and the Pauli X tangent.
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Real Bloch coordinates give a Hermitian matrix
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- An isolated qubit ensemblestructural-affinity · Closed
- Density-independent boundedness in fixed dimensionstructural-affinity · Closed
- Finite-Dimensional Quantum Skeletonsstructural-affinity · Closed
- FiniteLocalLatitudeGeometrystructural-affinity · Closed
- Gaussian atemporality implies entanglementstructural-affinity · Closed
- Hermitian SLD energystructural-affinity · Closed
- Mixed-unitary channels and marginal pinchingstructural-affinity · Closed
- Numerical ranges and compressionstructural-affinity · Closed
- Pure-qubit affine geometrystructural-affinity · Closed
- The optimal coherence created by qubit measurementsstructural-affinity · Closed
- Zero-Weight Support Facestructural-affinity · Closed
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