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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeSep 11th 2023
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded pointer to what seems to be the origin of the notion of density matrices: * [[John von Neumann]], §IV, §V in: *Mathematische Grundlagen der Quantenmechanik*, Springer (1932, 1971) &lbrack;[doi:10.1007/978-3-642-96048-2](https://link.springer.com/book/10.1007/978-3-642-96048-2)&rbrack; *Mathematical Foundations of Quantum Mechanics* Princeton University Press (1955) &lbrack;[doi:10.1515/9781400889921](https://doi.org/10.1515/9781400889921), [Wikipedia entry](https://en.wikipedia.org/wiki/Mathematical_Foundations_of_Quantum_Mechanics)&rbrack; <a href="https://ncatlab.org/nlab/revision/diff/density+matrix/23">diff</a>, <a href="https://ncatlab.org/nlab/revision/density+matrix/23">v23</a>, <a href="https://ncatlab.org/nlab/show/density+matrix">current</a>

   added pointer to what seems to be the origin of the notion of density matrices:

   • John von Neumann, §IV, §V in:

     Mathematische Grundlagen der Quantenmechanik, Springer (1932, 1971) [doi:10.1007/978-3-642-96048-2]

     Mathematical Foundations of Quantum Mechanics Princeton University Press (1955) [doi:10.1515/9781400889921, Wikipedia entry]

   diff, v23, current