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Nonlinear dynamics

Quantizing the classical cat

Nature volume 430, pages 731732 (12 August 2004) | Download Citation

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A mathematical analysis of a pendulum system reveals the relevance to quantum systems of the classical concept of ‘monodromy’ — why a falling cat always lands the right way up.

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  1. Ian Stewart is at the Mathematics Institute, University of Warwick, Coventry CV4 7AL, UK. ins@maths.warwick.ac.uk

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DOI

https://doi.org/10.1038/430731a

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