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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Contextuality and noncommutative geometry in quantum mechanics

de Silva, Nadish January 2015 (has links)
It is argued that the geometric dual of a noncommutative operator algebra represents a notion of quantum state space which differs from existing notions by representing observables as maps from states to outcomes rather than from states to distributions on outcomes. A program of solving for an explicitly geometric manifestation of quantum state space by adapting the spectral presheaf, a construction meant to analyze contextuality in quantum mechanics, to derive simple reconstructions of noncommutative topological tools from their topological prototypes is presented. We associate to each unital C&ast;-algebra A a geometric object--a diagram of topological spaces representing quotient spaces of the noncommutative space underlying A&mdash;meant to serve the role of a generalized Gel'fand spectrum. After showing that any functor F from compact Hausdorff spaces to a suitable target category C can be applied directly to these geometric objects to automatically yield an extension F<sup>&sim;</sup> which acts on all unital C&ast;-algebras, we compare a novel formulation of the operator K<sub>0</sub> functor to the extension K<sup>&sim;</sup> of the topological K-functor. We then conjecture that the extension of the functor assigning a topological space its topological lattice assigns a unital C&ast;-algebra the topological lattice of its primary ideal spectrum and prove the von Neumann algebraic analogue of this conjecture.

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