Quantum Limits of Measurement and Computing Induced by Conservation Laws and Uncertainty Relations

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A quantitative extension of the Wigner-Araki-Yanase theorem is obtained on the limitation on precise, non-disturbing measurements of observables which do not commute with additive conserved quantities, and applied to obtaining a limitation on the accuracy of quantum computing with computational bases which do not commute with angular momentum.
6 pages, LaTeX

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/90544

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0210046
 http://arxiv.org/abs/quant-ph/0210046
 in Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing, edited by J. H. Shappiro and O. Hirota (Rinton Press, Princeton, 2003), pp. 175--180.

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arXiv