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arXiv · 2205.13172

Starobinsky-Bel-Robinson gravity

Sergei V. Ketov
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Abstract

A novel superstring-inspired gravitational theory in four spacetime dimensions is proposed as a sum of the modified $(R+\alpha R^2)$ gravity motivated by the Starobinsky inflation and the Bel-Robinson-tensor-squared term motivated by the eleven-dimensional M-theory dimensionally reduced to four dimensions. The proposed Starobinsky-Bel-Robinson action has only two parameters, which makes it suitable for verifiable physical applications in black hole physics, cosmological inflation and Hawking radiation in the early universe.

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Sergei V. Ketov. 2022-05-26. Starobinsky-Bel-Robinson gravity. https://doi.org/10.3390/universe8070351

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