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Jackiw–Teitelboim gravity
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Jackiw–Teitelboim gravity : ウィキペディア英語版
Jackiw–Teitelboim gravity
The R=T model,〔
〕 also known as JackiwTeitelboim gravity is a theory of gravity with dilaton coupling in one spatial and one time dimension. It should not be confused〔
〕 with the CGHS model or Liouville gravity. The action is given by
:S = \frac\int d^2x\, \sqrt\left(-R\Phi - \frac g^ \nabla_ \Phi \nabla_ \Phi - \Lambda + \kappa\mathcal_ denotes the covariant derivative and the equation of motion is
:R-\Lambda=\kappa T
The metric in this case is more amenable to analytical solutions than the general 3+1D case. For example, in 1+1D, the metric for the case of two mutually interacting bodies can be solved exactly in terms of the Lambert W function, even with an additional electromagnetic field (see quantum gravity and references for details).
== See also ==

* CGHS model
* Liouville gravity
* Quantum gravity

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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