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- CGHS_model abstract "The Callan–Giddings–Harvey–Strominger model or CGHS in short is a toy model of general relativity in 1 spatial and 1 time dimension. General relativity is a highly nonlinear model, and as such, its 3+1D version is usually too complicated to analyze in detail. In 3+1D and higher, propagating gravitational waves exist, but not in 2+1D or 1+1D. In 2+1D, general relativity becomes a topological field theory with no local degrees of freedom, and all 1+1D models are locally flat. However, a slightly more complicated generalization of general relativity which includes dilatons will turn the 2+1D model into one admitting mixed propagating dilaton-gravity waves, as well as making the 1+1D model geometrically nontrivial locally. The 1+1D model still does not admit any propagating gravitational (or dilaton) degrees of freedom, but with the addition of matter fields, it becomes a simplified, but still nontrivial model. With other numbers of dimensions, a dilaton-gravity coupling can always be rescaled away by a conformal rescaling of the metric, converting the Jordan frame to the Einstein frame. But not in two dimensions, because the conformal weight of the dilaton is now 0. The metric in this case is more amenable to analytical solutions than the general 3+1D case. And of course, 0+1D models cannot capture any nontrivial aspect of relativity because there is no space at all.This class of models retains just enough complexity to include among its solutions black holes, their formation, FRW cosmological models, gravitational singularities, etc. In the quantized version of such models with matter fields, Hawking radiation also shows up, just as in higher-dimensional models.".
- CGHS_model wikiPageID "30268344".
- CGHS_model wikiPageLength "5848".
- CGHS_model wikiPageOutDegree "32".
- CGHS_model wikiPageRevisionID "670743989".
- CGHS_model wikiPageWikiLink (2+1)-dimensional_topological_gravity.
- CGHS_model wikiPageWikiLink Black_hole.
- CGHS_model wikiPageWikiLink Black_hole_information_paradox.
- CGHS_model wikiPageWikiLink Category:General_relativity.
- CGHS_model wikiPageWikiLink Category:Quantum_gravity.
- CGHS_model wikiPageWikiLink Causal_structure.
- CGHS_model wikiPageWikiLink Conformal_anomaly.
- CGHS_model wikiPageWikiLink Cosmological_constant.
- CGHS_model wikiPageWikiLink Dilaton.
- CGHS_model wikiPageWikiLink Dimensional_reduction.
- CGHS_model wikiPageWikiLink Effective_action.
- CGHS_model wikiPageWikiLink Flat_(geometry).
- CGHS_model wikiPageWikiLink General_relativity.
- CGHS_model wikiPageWikiLink Gravitational_singularity.
- CGHS_model wikiPageWikiLink Gravitational_wave.
- CGHS_model wikiPageWikiLink Hawking_radiation.
- CGHS_model wikiPageWikiLink Integrable_system.
- CGHS_model wikiPageWikiLink Jackiw–Teitelboim_gravity.
- CGHS_model wikiPageWikiLink Jordan_and_Einstein_frames.
- CGHS_model wikiPageWikiLink Liouville_gravity.
- CGHS_model wikiPageWikiLink Liouville_term.
- CGHS_model wikiPageWikiLink Metric_tensor.
- CGHS_model wikiPageWikiLink Non-critical_string_theory.
- CGHS_model wikiPageWikiLink Quantum_gravity.
- CGHS_model wikiPageWikiLink RST_model.
- CGHS_model wikiPageWikiLink Toy_model.
- CGHS_model wikiPageWikiLinkText "CGHS model".
- CGHS_model wikiPageUsesTemplate Template:=.
- CGHS_model wikiPageUsesTemplate Template:Quantum_gravity.
- CGHS_model wikiPageUsesTemplate Template:Theories_of_gravitation.
- CGHS_model subject Category:General_relativity.
- CGHS_model subject Category:Quantum_gravity.
- CGHS_model hypernym Model.
- CGHS_model type Person.
- CGHS_model comment "The Callan–Giddings–Harvey–Strominger model or CGHS in short is a toy model of general relativity in 1 spatial and 1 time dimension. General relativity is a highly nonlinear model, and as such, its 3+1D version is usually too complicated to analyze in detail. In 3+1D and higher, propagating gravitational waves exist, but not in 2+1D or 1+1D. In 2+1D, general relativity becomes a topological field theory with no local degrees of freedom, and all 1+1D models are locally flat.".
- CGHS_model label "CGHS model".
- CGHS_model sameAs Q5010970.
- CGHS_model sameAs Modelo_de_CGHS.
- CGHS_model sameAs m.0g57_sn.
- CGHS_model sameAs Q5010970.
- CGHS_model wasDerivedFrom CGHS_model?oldid=670743989.
- CGHS_model isPrimaryTopicOf CGHS_model.