31 citations · 31 across the 4 of their papers we have counts for
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gr-qc2025
Matter-antimatter asymmetry in a rotating universe: Dirac spinors in axisymmetric Bianchi IX cosmology
Tatevik Vardanyan
The standard CDM model, based on a highly symmetric FLRW geometry, successfully explains many observations but faces unresolved issues, motivating the exploration of alternative…
gr-qc2023
Quantum-gravitational corrections to the power spectrum for a closed universe
Tatevik Vardanyan, Claus Kiefer
We study the quantum-gravitational corrections to the power spectrum of a gauge-invariant inflationary scalar perturbations in a closed model of a universe. We consider canonical q…
gr-qc2021★ 31 cited
Power spectrum for perturbations in an inflationary model for a closed universe
Claus Kiefer, Tatevik Vardanyan
We derive the power spectrum of primordial quantum fluctuations in an inflationary universe for curvature parameter . This is achieved through a Born--Oppenheimer t…