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Observables in Extended Percolation Models of Causal Set Cosmology

Fay Dowker·Sumati Surya
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Abstract

Classical sequential growth models for causal sets provide an important step towards the formulation of a quantum causal set dynamics. The covariant observables in a class of these models known as generalised percolation have been completely characterised in terms of physically well-defined ``stem sets'' and yield an insight into the nature of observables in quantum causal set cosmology. We discuss a recent extension of generalised percolation and show that the characterisation of covariant observables in terms of stem sets is also complete in this extension.

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Fay Dowker, Sumati Surya. 2005-04-15. Observables in Extended Percolation Models of Causal Set Cosmology. https://doi.org/10.1088/0264-9381%2F23%2F4%2F018

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