Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …

Physics welcomes the idea that space contains energy whose gravitational effect
approximates that of Einstein's cosmological constant, Λ; today the concept is termed dark …

On the Hubble Constant Tension in the SNe Ia Pantheon Sample - IOPscience This site uses
cookies. By continuing to use this site you agree to our use of cookies. To find out more, see …

In this article, we have investigated the role of bulk viscosity to study the accelerated
expansion of the universe in the framework of modified f (Q) gravity. The gravitational action …

Nature's simplest field, the scalar field, has been the protagonist of physical theories for a
long time. Even before the publication of the theory of general relativity G. Nordström …

It has been a half-decade since the first direct detection of gravitational waves, which
signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave …

We consider de Sitter universe and Nariai universe induced by quantum CFT with classical
phantom matter and perfect fluid. The model represents the combination of trace-anomaly …

Interacting quintessence - ScienceDirect Skip to main contentSkip to article Elsevier logo
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We show that a suitable interaction between a scalar field and a matter fluid in a spatially
homogeneous and isotropic spacetime can drive the transition from a matter dominated era …

We consider a late-time cosmological model based on a recent proposal that the infinite-
bare-coupling limit of superstring or M theory exists and has good phenomenological …