Bottleneck surfaces and worldsheet geometry of higher-curvature quantum gravity

Richard J. Szabo; John F. Wheater

doi:10.1088/1126-6708/2000/05/033

Bottleneck surfaces and worldsheet geometry of higher-curvature quantum gravity

Richard J. Szabo^*, John F. Wheater

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We describe a simple lattice model of higher-curvature quantum gravity in two dimensions and study the phase structure of the theory as a function of the curvature coupling. It is shown that the ensemble of flat graphs is entropically unstable to the formation of baby universes. In these simplified models the growth in graphs exhibits a branched polymer behaviour in the phase directly before the flattening transition.

Original language	English
Article number	033
Journal	Journal of High Energy Physics
Volume	2000
Issue number	5
DOIs	https://doi.org/10.1088/1126-6708/2000/05/033
Publication status	Published - May 2000

Keywords

2D Gravity
Models of Quantum Gravity

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1088/1126-6708/2000/05/033

Cite this

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title = "Bottleneck surfaces and worldsheet geometry of higher-curvature quantum gravity",

abstract = "We describe a simple lattice model of higher-curvature quantum gravity in two dimensions and study the phase structure of the theory as a function of the curvature coupling. It is shown that the ensemble of flat graphs is entropically unstable to the formation of baby universes. In these simplified models the growth in graphs exhibits a branched polymer behaviour in the phase directly before the flattening transition.",

keywords = "2D Gravity, Models of Quantum Gravity",

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AB - We describe a simple lattice model of higher-curvature quantum gravity in two dimensions and study the phase structure of the theory as a function of the curvature coupling. It is shown that the ensemble of flat graphs is entropically unstable to the formation of baby universes. In these simplified models the growth in graphs exhibits a branched polymer behaviour in the phase directly before the flattening transition.

KW - 2D Gravity

KW - Models of Quantum Gravity

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DO - 10.1088/1126-6708/2000/05/033

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JF - Journal of High Energy Physics

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Bottleneck surfaces and worldsheet geometry of higher-curvature quantum gravity

Abstract

Keywords

ASJC Scopus subject areas

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