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# Quantum Quandaries : A Category-Theoretic Perspective

@inproceedings{Baez2004QuantumQ, title={Quantum Quandaries : A Category-Theoretic Perspective}, author={John C. Baez}, year={2004} }

- Published 2004

General relativity may seem very different from quantum theory, but work on quantum gravity has revealed a deep analogy between the two. General relativity makes heavy use of the category nCob, whose objects are (n − 1)-dimensional manifolds representing ‘space’ and whose morphisms are n-dimensional cobordisms representing ‘spacetime’. Quantum theory makes heavy use of the category Hilb, whose objects are Hilbert spaces used to describe ‘states’, and whose morphisms are bounded linear operators… CONTINUE READING

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