9 papers · 1 filter
Background-dependent and classical correspondences between and gravity
Cheng Wu, Xin Ren, Yuhang Yang +2
and gravity are based on fundamentally different geometric frameworks, yet they exhibit many similar properties. This article provides a comprehensive summary and com…
Interacting phantom dark energy: new accelerating scaling attractors
Sudip Halder, S. D. Odintsov, Supriya Pan +2
We perform a detailed investigation of interacting phantom cosmology, by applying the powerful method of dynamical system analysis. We consider two well-studied interaction forms,…
Barrow holographic dark energy with varying exponent
Spyros Basilakos, Andreas Lymperis, Maria Petronikolou +1
We construct Barrow holographic dark energy with varying exponent. Such an energy-scale-dependent behavior is typical in quantum field theory and quantum gravity under renormalizat…
Observational Constraints and Cosmographic Analysis of Gravity and Cosmology
Harshna Balhara, J. K. Singh, Shaily +1
We perform observational confrontation and cosmographic analysis of gravity and cosmology. This higher-order torsional gravity is based on both the torsion scalar, as we…
Lowering the strong coupling mode of modified teleparallel gravity theories
Yu-Min Hu, Bi-Chu Li, Yang Yu +3
We investigate the strong coupling problem in modified teleparallel gravity theories using the effective field theory (EFT) approach, demonstrating that it is possible to shift the…
Revisiting string-inspired running-vacuum models under the lens of light primordial black holes
Theodoros Papanikolaou, Charalampos Tzerefos, Spyros Basilakos +2
Light primordial black holes (PBHs) with masses can interestingly dominate the Universe's energy budget and give rise to early matter-dominated (eMD…