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Integrable scalar cosmologies with matter and curvature
Nuclear Physics B ( IF 2.8 ) Pub Date : 2020-06-20 , DOI: 10.1016/j.nuclphysb.2020.115095
Davide Fermi , Massimo Gengo , Livio Pizzocchero

We show that several integrable (i.e., exactly solvable) scalar cosmologies considered by Fré, Sagnotti and Sorin (Nuclear Physics B 877(3) (2013), 1028–1106) can be generalized to include cases where the spatial curvature is not zero and, besides a scalar field, matter or radiation are present with an equation of state p(m)=wρ(m); depending on the specific form of the self-interaction potential for the field, the constant w can be arbitrary or must be fixed suitably.



中文翻译:

具有物质和曲率的可积标量宇宙

我们证明了Fré,Sagnotti和Sorin(Nuclear Physics B 877(3)(2013),1028-1106)所考虑的几种可积(即完全可解)标量宇宙学可以被概括为包括空间曲率不为零且除了标量场外,物质或辐射还带有状态方程p=wρ; 取决于场的自相互作用电势的特定形式,常数w可以是任意的或必须适当地固定。

更新日期:2020-07-01
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