Toroidal-Core Certificates for PPT-Squared Diagonal Orthogonal Covariant Channels

arXiv:2609.32979 · quant-ph, math-ph, math.MP · Submitted 2026-09-26 · Read on arXiv

quant-ph, math-ph, math.MP

Submitted: 2026-09-26

Updated: 2026-09-26

Terminology

• Entanglement — 13× in this paper · explained in 4 episodes
• Core — 10× in this paper · explained in 2 episodes
• Trace — 5× in this paper · explained in 2 episodes
• Generalization — 1× in this paper · explained in 13 episodes

Sources

• Semidefinite hierarchies for diagonal unitary invariant bipartite quantum states
• Diagonal unitary and orthogonal symmetries in quantum theory
• Operator Algebra Generalization of a Theorem of Watrous and Mixed Unitary Quantum Channels
• Optimizing entanglement distribution via noisy quantum channels

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