4 citations · 5 across the 12 of their papers we have counts for
14 papers
Cosmological Bounds on the Generalized Uncertainty Principle from the CMB
Andronikos Paliathanasis
We constrain the deformation parameter of the Generalized Uncertainty Principle with cosmological observations. A quadratic deformation of the Heisenberg uncertainty principle…
Beyond dynamical dark energy: the role of dark sector interactions after DESI DR2
Weiqiang Yang, Sibo Zhang, Supriya Pan +2
Recent DESI DR2 observations have renewed interest in extensions of the CDM cosmological model, particularly through indications of a time-varying dark energy equation of state.…
Reconstructing the generalized Barrow holographic dark energy with physics-informed neural networks
Spyros Basilakos, Andronikos Paliathanasis, Emmanuel N. Saridakis +1
Barrow holographic dark energy connects cosmic acceleration with possible quantum-gravitational deformations of horizon entropy, encoded in the Barrow exponent . If such effects…
Observational constraints on Barrow holographic dark energy coupled with a non-cold dark matter component from DESI DR2
Abdulla Al Mamon, Genly Leon, Subhajit Saha +1
We investigate the cosmological viability of Barrow holographic dark energy in a spatially flat Friedmann--Lema\^ıtre--Robertson--Walker universe in which the dark matter component…
Unifying the Dark Sector with the New Generalized Chaplygin Gas: Observational Constraints
Abdulla Al Mamon, Andronikos Paliathanasis, Subhajit Saha
In light of recent cosmological observations, we examine a generalized Chaplygin gas model with a redshift-dependent exponent as a framework for describing the dark energy and dark…
Cosmo-PINN: A Physics-Informed Neural Network for Cosmological Reconstruction
Andronikos Paliathanasis
We introduce Cosmo-PINN, a Physics-Informed Neural Network for reconstruction of the cosmological theory. In this work we demonstrate the application of the Cosmo-PINN in the recon…
Saturation Mechanisms in the Interacting Dark Sector
Andronikos Paliathanasis, Kevin J. Duffy
We introduce a family of phenomenological cosmological models featuring an interacting dark sector modulated by a sparseness scale parameter, in order to describe the late-time acc…
Viaggiu holographic dark energy in light of DESI DR2
Amlan K. Halder, Andronikos Paliathanasis, Stefano Viaggiu +2
We test the cosmological viability of the Viaggiu holographic dark energy (VHDE) model by using late-time observational data. In particular, we place constraints on the free parame…
Cosmological Constraints on the Generalized Uncertainty Principle from Redshift-Space Distortions
Andronikos Paliathanasis
We investigate the imprints of the Generalized Uncertainty Principle on cosmological scales by using redshift-space distortion measurements in combination with background cosmologi…
Observational Constraints on Noncoincident -Gravity with Matter-Gravity Coupling
Andronikos Paliathanasis
We investigate -gravity with a matter-gravity coupling as a geometric dark energy candidate for the description of the late-time cosmic acceleration within a spa…
Testing the Coexistence of Dark Energy and Dark Matter with Late-time Observational Data
Shambel Sahlu, Andronikos Paliathanasis, Genly Leon +1
We investigate the viability of a cosmological scenario with interacting dark sector, which can describe the coexistence between dark energy and dark matter. The model possesses an…
Dynamics of the Bianchi~V cosmological model inspired by quintessential -attractors
Genly Leon, Amare Abebe, Andronikos Paliathanasis
We investigate scalar-field cosmologies in the Bianchi V spacetime using a dynamical-systems framework. Motivated by representative -attractor potentials - the E-model and T-mod…
Hints Beyond CDM from Barrow and Tsallis Holographic Dark Energy with GO cutoff
G. G. Luciano, A. Paliathanasis, G. Leon +2
Barrow and Tsallis Holographic Dark Energy (HDE) are two recent extensions of the standard HDE framework, obtained by introducing generalized entropy corrections through the Barrow…
Observational constraints on the modified cosmology inspired by string T-duality
G. G. Luciano, A. Paliathanasis, A. Sheykhi
We explore the cosmological consequences of a modified cosmology inspired by string T-duality. We incorporate the zero-point length correction, , into the gravitational potent…