# Decoherence of hydrodynamic histories: A simple spin model.

@article{Brun1996DecoherenceOH, title={Decoherence of hydrodynamic histories: A simple spin model.}, author={Brun and Halliwell}, journal={Physical review. D, Particles and fields}, year={1996}, volume={54 4}, pages={ 2899-2912 } }

In the context of the decoherent histories approach to the quantum mechanics of closed systems, Gell-Mann and Hartle have argued that the variables typically characterizing the quasiclassical domain of a large complex system are the integrals over small volumes of locally conserved densities\char22{}hydrodynamic variables. The aim of this paper is to exhibit some simple models in which approximate decoherence arises as a result of local conservation. We derive a formula which shows the explicit…

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