TL;DR
This paper introduces a new four-dimensional superstring-inspired gravity theory combining Starobinsky inflation and Bel-Robinson tensor terms, with potential applications in black hole physics and early universe cosmology.
Contribution
It proposes a novel gravity model integrating Starobinsky and Bel-Robinson terms with only two parameters, inspired by superstring and M-theory.
Findings
Suitable for black hole physics and cosmology
Two-parameter model simplifies physical applications
Links superstring theory with observable phenomena
Abstract
A novel superstring-inspired gravitational theory in four spacetime dimensions is proposed as a sum of the modified 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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