14 citations · 36 across the 6 of their papers we have counts for
6 papers
Stability of the de-Sitter spacetime. The anisotropic case
Przemysław Bieniek, Jan Chojnacki, Jan H. Kwapisz +1
We elaborate on the cosmological implications of the recently established non-perturbative )-symmetric approach. Following the -complete Friedmann equations, we provide…
Non-linear stability of -corrected Friedmann equations
Heliudson Bernardo, Jan Chojnacki, Vincent Comeau
We study the non-linear stability of fixed-point solutions to the -exact equations from O invariant cosmology, with and without matter perturbations. Previous non-linear…
Stability of the non-perturbative de-Sitter spacetime. The isotropic case
Przemysław Bieniek, Jan Chojnacki, Jan H. Kwapisz +1
The existence of de-Sitter solutions and their stability within string theory became, in recent years, one of the central research questions within the string theory community. The…
Finite Action Principle and wormholes
Jan Chojnacki, Jan Henryk Kwapisz
In this work, we elaborate on the finite action for wormholes in higher derivative theories. Both non-traversable and traversable wormholes in theories with higher curvature invari…
Finite Action Principle and Horava-Lifshitz Gravity: early universe, black holes and wormholes
Jan Chojnacki, Jan H. Kwapisz
The destructive interference of the neighbouring field configurations with infinite classical action in the gravitational path integral approach serves as a dynamical mechanism res…
Is asymptotically safe inflation eternal?
Jan Chojnacki, Julia Krajecka, Jan H. Kwapisz +2
Recently, based on swampland considerations in string theory, the (no) eternal inflation principle has been put forward. The natural question arises whether similar conditions hold…