Geometry and observables in (2+1)-gravity

Meusburger C (2011)


Publication Status: Published

Publication Type: Journal article, Review article

Publication year: 2011

Journal

Publisher: Springer Verlag (Germany)

Book Volume: 43

Pages Range: 2409-2420

Journal Issue: 9

DOI: 10.1007/s10714-010-0981-9

Abstract

We review the geometrical properties of vacuum spacetimes in (2+1)-gravity with vanishing cosmological constant. We explain how these spacetimes are characterised as quotients of their universal cover by holonomies. We explain how this description can be used to clarify the geometrical interpretation of the fundamental physical variables of the theory, holonomies and Wilson loops. In particular, we discuss the role of Wilson loop observables as the generators of the two fundamental transformations that change the geometry of (2+1)-spacetimes, grafting and earthquake. We explain how these variables can be determined from realistic measurements by an observer in the spacetime. © 2010 Springer Science+Business Media, LLC.

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How to cite

APA:

Meusburger, C. (2011). Geometry and observables in (2+1)-gravity. General Relativity and Gravitation, 43(9), 2409-2420. https://dx.doi.org/10.1007/s10714-010-0981-9

MLA:

Meusburger, Cathérine. "Geometry and observables in (2+1)-gravity." General Relativity and Gravitation 43.9 (2011): 2409-2420.

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