50 citations
- University of Beira InteriorPT15 papers
- Qazvin Islamic Azad UniversityIR4 papers
- Kazan Federal UniversityRU3 papers
- Landau Institute for Theoretical PhysicsRU3 papers
- Universidade Federal de PernambucoBR3 papers
- Imperial College LondonGB2 papers
- ShanghaiTech UniversityCN2 papers
- St Petersburg UniversityRU2 papers
- Tokyo Institute of TechnologyJP2 papers
- University of PortsmouthGB2 papers
- University of WarsawPL2 papers
- Institute for High Energy PhysicsES1 paper
15 papers
Post-inflationary GW production in generic higher (infinite) derivative gravity
Alexey S. Koshelev, Alexei A. Starobinsky, Anna Tokareva
Gravity can be embedded into a renormalizable theory by means of adding quadratic in curvature terms. However, this at first leads to the presence of the Weyl ghost. It is possible…
Non-Gaussianities in generalized non-local -like inflation
Alexey S. Koshelev, K. Sravan Kumar, Alexei A. Starobinsky
In [1], a most general higher curvature non-local gravity action was derived that admits a particular -like inflationary solution predicting the spectral index of primordial s…
Inflation and fractional quantum cosmology
S. M. M. Rasouli, E. W. Oliveira Costa, P. V. Moniz +1
The Wheeler--DeWitt equation for a flat and compact Friedmann--Lemaître--Robertson--Walker cosmology at the pre-inflation epoch is studied in the contexts of the standard and fract…
Generalized non-local -like inflation
Alexey S. Koshelev, K. Sravan Kumar, Alexei A. Starobinsky
The inflation which is an extension of general relativity (GR) by quadratic scalar curvature introduces a quasi-de Sitter expansion of the early Universe governed by Ricci sc…
Transposed Poisson structures on Block Lie algebras and superalgebras
Ivan Kaygorodov, Mykola Khrypchenko
We describe transposed Poisson algebra structures on Block Lie algebras and Block Lie superalgebras , where is an arbitrary complex number. Speci…
Confining complex ghost degrees of freedom
Marco Frasca, Anish Ghoshal, Alexey S. Koshelev
We show a theorem proving that a non-local bosonic field upon a covariant interaction with a confining gauge field undergoes the confinement of its degrees of freedom present in th…