$J$-states and quantum channels between indefinite metric spaces

DOI10.1007/s11128-022-03472-2zbMath1508.81071arXiv2009.07759MaRDI QIDQ6349248

Raúl Felipe-Sosa, Raúl Felipe

Publication date: 16 September 2020

Mathematics Subject Classification ID

Positive matrices and their generalizations; cones of matrices (15B48) Spaces with indefinite inner product (Kre?n spaces, Pontryagin spaces, etc.) (46C20) Quantum information, communication, networks (quantum-theoretic aspects) (81P45) Quantum state spaces, operational and probabilistic concepts (81P16) Quantum channels, fidelity (81P47)

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