Energy conditions in Starobinsky supergravity
Energy conditions in Starobinsky supergravity
复制标题
Starobinsky超重力中的能量条件
DOI：
10.1088/1475-7516/2017/03/061
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发表时间：
2017
影响因子：
6.4
通讯作者：
Sergei V. Ketov
中科院分区：
文献类型：
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作者：
Andrea Addazi;Sergei V. Ketov
我们考虑Starobinsky超引力理论中的经典能量条件（强、零和弱）。我们详细研究了最简单的Starobinsky超引力模型中的“旧的最小”超引力设置，并找到违反每个能量条件的例子，由于额外的标量dof存在于超引力的参数在一定范围内。我们发现零和弱能量条件被保存和强能量条件被违反的物理相关的例子，如通货膨胀和暗能量。
We consider the classical energy conditions (strong, null and weak) in Starobinsky supergravity theories. We study in detail the simplest Starobinsky supergravity model in the``old-minimal" supergravity setup and find examples of violations of each energy condition for a certain range of the parameters due to extra scalar dof present in supergravity. We find the null and weak energy conditions to be preserved and the strong energy condition to be violated in the physically relevant examples such as inflation and dark energy.