112 citations · 794 across the 42 of their papers we have counts for
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Starobinsky inflation beyond the leading order
Shunsuke Toyama, Sergei V. Ketov
The Starobinsky model of cosmological inflation in four spacetime dimensions is reviewed with the emphasis on impact of quantum gravity corrections. As a specific example of the qu…
Starobinsky inflation and Swampland conjectures
Sergei V. Ketov
This paper is devoted to memory of late Professor V. G. Bagrov, who was my first teacher in theoretical physics. About 45 years later, theoretical physics has changed and me too. T…
Einstein-Grisaru-Zanon gravity
Ruben Campos Delgado, Sergei V. Ketov
The leading -correction to the gravitational low-energy effective action of closed (type II) superstring theory in four-spacetime dimensions defines the Einstein-Grisaru-Za…
Dilaton-axion modular inflation in supergravity
Daniel Frolovsky, Sergei V. Ketov
Dilaton and axion are ubiquitous in extended supergravities and closed superstrings. We propose new models of modular inflation in four-dimensional supergravity coupled to th…
Quantum loop corrections in the modified gravity model of Starobinsky inflation with primordial black hole production
Sultan Saburov, Sergei V. Ketov
A modified gravity model of Starobinsky inflation and primordial black hole production was proposed in good (within ) agreement with current measurements of the cosmic microwav…
Improved model of large-field inflation with primordial black hole production in Starobinsky-like supergravity
Ryotaro Ishikawa, Sergei V. Ketov
A viable model of large-field (chaotic) inflation with efficient production of primordial black holes is proposed in Starobinsky-like (modified) supergravity leading to the "no-sca…