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On Berry Phases Along Mixtures of States
Author(s) -
Uhlmann A.
Publication year - 1989
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19895010108
Subject(s) - geometric phase , berry , berry connection and curvature , von neumann architecture , phase space , physics , phase (matter) , space (punctuation) , state (computer science) , theoretical physics , mathematical physics , pure mathematics , quantum mechanics , mathematics , computer science , botany , biology , algorithm , operating system
Concepts connected with Berry's phase can be extended to curves and loops in state spaces defined by von Neumann algebras. This includes the important space of density operators.