Characterize quantum channels stabilizing a given set of density matrices: - [What is Possible Without Disturbing Partially Known Quantum States? / Operations that do not disturb partially known quantum states](https://arxiv.org/abs/quant-ph/0101144v2) (85 - 89) - [Structure of states which satisfy strong subadditivity of quantum entropy with equality](https://arxiv.org/abs/quant-ph/0304007v2) (Theorem 10) - [Compressibility of Mixed-State Signals](https://arxiv.org/pdf/quant-ph/0103128) (4 - 6)
Characterize quantum channels stabilizing a given set of density matrices: