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theorems:stone-von_neumann

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theorems:stone-von_neumann [2018/05/02 09:11]
jakobadmin [Intuitive]
theorems:stone-von_neumann [2018/07/18 13:24]
jakobadmin [Intuitive]
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 <tabbox Intuitive> ​ <tabbox Intuitive> ​
 +<​blockquote>​The Stone-von Neumann theorem roughly says that for any operators $A$ and $B$ satisfying the canonical commutation relation, we can get away with using the standard representation $A \rightarrow u,\ B \rightarrow -i \hbar \frac{d}{du}$ without loss of generality. (More precisely, it says that any representation of the *exponentiated* canonical commutation relation on a sufficiently smooth Hilbert space is unitarily equivalent to the standard representation,​ so any other representation basically just describes the same physics in a different coordinate system.)<​cite>​https://​physics.stackexchange.com/​a/​264587/​37286</​cite></​blockquote>​
 +
 <​blockquote>​In typical physics quantum mechanics textbooks, one often sees calculations <​blockquote>​In typical physics quantum mechanics textbooks, one often sees calculations
-made just using the [[equations:​canonical_commutation_relations|Heisenberg commutation relations]],​ without picking a specific+made just using the [[formulas:​canonical_commutation_relations|Heisenberg commutation relations]],​ without picking a specific
 representation of the operators that satisfy these relations. This turns out representation of the operators that satisfy these relations. This turns out
 to be justified by the remarkable fact that, for the Heisenberg group, once one to be justified by the remarkable fact that, for the Heisenberg group, once one
theorems/stone-von_neumann.txt · Last modified: 2018/07/18 13:24 by jakobadmin