Casimir -- from Eric Weisstein's World of Physics

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Casimir

A conserved quantity which exists because of a degeneracy in a Poisson bracket that is singular and noncanonical.

Poisson Bracket




References

Lichtenberg, A. and Lieberman, M. Regular and Stochastic Motion, 2nd ed. New York: Springer-Verlag, pp. 45-48, 1994.



© 1996-2007 Eric W. Weisstein

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