Measurement of Purity, the Simplest Nonlinear Functional of the Density Matrix

DOI10.1142/S1230161214400095zbMath1295.81020OpenAlexW2133163144MaRDI QIDQ5411614

Tohru Tanaka, Hiromichi Nakazato

Publication date: 24 April 2014

Published in: Open Systems & Information Dynamics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1142/s1230161214400095

zbMATH Keywords

density matrixscattering processpurity

Mathematics Subject Classification ID

(S)-matrix theory, etc. in quantum theory (81U20) Measures of information, entropy (94A17) Quantum information, communication, networks (quantum-theoretic aspects) (81P45) Quantum state spaces, operational and probabilistic concepts (81P16)

Related Items (1)

Editorial: Introduction and Motivations

Cites Work

• Quantum state merging and negative information
• The Bloch vector for \(N\)-level systems
• Resonant scattering can enhance the degree of entanglement

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