Scalar perturbations during inflation can be substantially amplified by tiny features in the
inflaton potential. A bump-like feature behaves like a local speed-breaker and lowers the …

In this work we study static neutron stars in the context of several inflationary models which
are popular in cosmology. These inflationary models are nonminimally coupled scalar …

Inflation is considered as the best theory of the early universe by a very large fraction of
cosmologists. However, the validity of a scientific model is not decided by counting the …

This paper offers novel quintessence compact relativistic spherically symmetrical anisotropic
solutions under the recently developed Ricci inverse gravity (Amendola et al., 2020), by …

Here, generation of PBHs and secondary GWs from non-canonical inflation with quartic
potential have been probed. It is illustrated that, quartic potential in non-canonical setup with …

In this work, we consider the models of cosmological inflation based on generalized scalar–
tensor theories of gravity with quadratic connection between the Hubble parameter and …

We investigate the effects of nonzero spatial curvature on cosmic inflation in light of cosmic
microwave background (CMB) anisotropy measurements from the Planck Legacy 2018 …

Qualitative dynamics of three different loop quantizations of spatially flat isotropic and
homogeneous models is studied using an effective spacetime description of the underlying …

We study initial conditions for inflation in scenarios where the inflaton potential has a plateau
shape. Such models are those most favored by Planck data and can be obtained in a large …

Motivated by experimental studies of graphene in the quantum Hall regime, we revisit the
phase diagram of a single sheet of graphene at charge neutrality. Because of spin and …