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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6433
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dc.contributor.authorGlaser, Lisa-
dc.contributor.authorSurya, Sumati-
dc.date.accessioned2016-10-08T13:16:50Z-
dc.date.available2016-10-08T13:16:50Z-
dc.date.issued2016-03-17-
dc.identifier.citationClassical and Quantum Gravity, 2016, Vol.33, p065003en_US
dc.identifier.issn0264-9381-
dc.identifier.issn1361-6382 (E)-
dc.identifier.urihttp://hdl.handle.net/2289/6433-
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en_US
dc.description.abstractWe define the Hartle–Hawking no-boundary wave function for causal set theory (CST) over the discrete analogs of spacelike hypersurfaces. Using Markov Chain Monte Carlo and numerical integration methods we analyze the wave function in non-perturbative 2D CST. We find that in the low-temperature regime it is dominated by causal sets which have no continuum counterparts but possess physically interesting geometric properties. Not only do they exhibit a rapid spatial expansion with respect to the discrete proper time, but a high degree of spatial homogeneity. The latter is due to the extensive overlap of the causal pasts of the elements in the final discrete hypersurface and corresponds to high graph connectivity. Our results thus suggest new possibilities for the role of quantum gravity in the observable Universe.en_US
dc.language.isoenen_US
dc.publisherIOP Publishing Ltd.en_US
dc.relation.urihttp://arxiv.org/abs/1410.8775en_US
dc.relation.urihttp://dx.doi.org/10.1088/0264-9381/33/6/065003en_US
dc.rights2016 IOP Publishing Ltd.en_US
dc.titleThe Hartle–Hawking wave function in 2D causal set quantum gravityen_US
dc.typeArticleen_US
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