General relativity in (1 + 1) dimensions

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Abstract

We describe a theory of gravity in (1 + 1) dimensions that can be thought of as a toy model of general relativity. The theory should be a useful pedagogical tool, because it is mathematically much simpler than general relativity but shares much of the same conceptual structure; in particular, it gives a simple illustration of how gravity arises from spacetime curvature. We derive the theory from fundamental physical principles using two different methods, one based on extrapolating from Newtonian gravity and one based on the equivalence principle, and present several exact solutions.

Original languageEnglish (US)
Pages (from-to)319-333
Number of pages15
JournalEuropean Journal of Physics
Volume29
Issue number2
DOIs
StatePublished - Mar 1 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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