Cover Image

Probing late-time deviations from $Λ$CDM with a quadratic dark energy expansion

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Khandelwal, Sehjal, Capistrano, Abraão J. S., Kumar, Suresh, Nunes, Rafael C.
Format:	Preprint
Published:	2026
Subjects:	Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Similar Items

Statistical consistency of sign-switching vacuum energy with cosmological observations
by: Khandelwal, Sehjal, et al.
Published: (2026)

Mapping the $Λ_{\rm s}$CDM scenario to $f(T)$ modified gravity: Effects on structure growth rate
by: Souza, Mateus S., et al.
Published: (2025)

Lower tensor-to-scalar ratio as possible signature of modified gravity
by: Capistrano, Abraão J. S., et al.
Published: (2024)

Cosmological constraints on dark energy parametrizations after DESI 2024: Persistent deviation from standard $Λ$CDM cosmology
by: Malekjani, M., et al.
Published: (2024)

$\mathbf{Ω_1Ω_2}$-$\mathbfΛ$CDM: A promising phenomenological extension of the standard model of cosmology
by: Kumar, Suresh
Published: (2025)

Probing departures from $Λ$CDM by late-time datasets
by: Chaudhary, Himanshu, et al.
Published: (2025)

Topological dark energy from spacetime foam: A challenge for $Λ$CDM
by: Anagnostopoulos, Fotios K., et al.
Published: (2025)

Interacting dark energy after DESI DR2: a challenge for $Λ$CDM paradigm?
by: Pan, Supriya, et al.
Published: (2025)

$Λ$CDM model against cosmography: A possible deviation after DESI 2024
by: Pourojaghi, Saeed, et al.
Published: (2024)

Probing $Λ$CDM through the Weyl potential and machine learning forecasts
by: Arjona, Rubén, et al.
Published: (2024)

Cosmic expansion beyond $Λ$CDM: Investigating power-law and logarithmic corrections
by: Koussour, M., et al.
Published: (2024)

Reconstruction of dark energy and late-time cosmic expansion using the Weighted Function Regression method
by: González-Fuentes, Alex, et al.
Published: (2025)

Cosmological Constraints on $Λ$(t)CDM Models
by: Macedo, H. A. P., et al.
Published: (2023)

$Λ$CDM from broken diffeomorphisms
by: Pérez, Javier de Cruz, et al.
Published: (2025)

Peculiar velocities in the $Λ$CDM universe
by: Patliaka, Evanthia, et al.
Published: (2026)

Nonlinear Matter Power Spectrum from relativistic $N$-body Simulations: $Λ_{\rm s}$CDM versus $Λ$CDM
by: Akarsu, Özgür, et al.
Published: (2025)

Challenging $Λ$CDM with Higher-Order GUP Corrections
by: Paliathanasis, Andronikos, et al.
Published: (2025)

$Λ$vCF: Extending $Λ$CDM into a Unified Model with Particle Creation
by: Pai, Vishnu A, et al.
Published: (2025)

Multiprobe constraints on early and late time dark energy
by: Reeves, Alexander, et al.
Published: (2025)

Forecasting constraints on deviations from general relativity in $f(Q)$ gravity with standard sirens
by: D'Agostino, Rocco, et al.
Published: (2022)

Exploring the interplay of late-time dynamical dark energy and new physics before recombination
by: González-Fuentes, Alex, et al.
Published: (2026)

Revisiting $Λ$CDM extensions in light of re-analyzed CMB data
by: Asorey, Jacobo, et al.
Published: (2025)

Dynamical dark energy from spacetime-symmetry breaking -- late-time behaviour and phantom crossing
by: Nilsson, Nils A.
Published: (2023)

Dissipative $Λ$CDM model with causal sign-switching bulk viscous pressure
by: Pai, Vishnu A, et al.
Published: (2024)

Improved null tests of $Λ$CDM and FLRW in light of DESI DR2
by: Dinda, Bikash R., et al.
Published: (2025)

Empirical Validation: Investigating the $Λ_s $CDM Model with new DESI BAO Observations
by: Yadav, Manish, et al.
Published: (2025)

Possible evidences for physics beyond $Λ$CDM from DESI DR2 data
by: Yang, Rong-Jia
Published: (2025)

Observational bounds on extended minimal theories of massive gravity: New limits on the graviton mass
by: De Felice, Antonio, et al.
Published: (2023)

Omnipotent dark energy: A phenomenological answer to the Hubble tension
by: Adil, Shahnawaz A., et al.
Published: (2023)

$Λ$CDM Model Against Gravity-Thermodynamics Conjecture: Observational Constraints After DESI 2024
by: Shahhoseini, N., et al.
Published: (2025)

Beyond $Λ$CDM with a Logistic RG-like Flow of the Low Redshift Cosmic Evolution
by: Choudhury, Shibendu Gupta, et al.
Published: (2026)

Comparing measures of the Hubble and BAO tensions in $Λ$CDM and possible solutions in $f(Q)$ gravity
by: Nájera, José Antonio, et al.
Published: (2025)

Isotropic Equivalence of STVG--MOG and $Λ$CDM and Its Breakdown in Large--Scale Anisotropic Cosmological Observables
by: Moffat, John W.
Published: (2026)

Do equation of state parametrizations of dark energy faithfully capture the dynamics of the late universe?
by: Akarsu, Özgür, et al.
Published: (2026)

Non-canonical 3-form dark energy
by: da Fonseca, Vitor, et al.
Published: (2024)

Is the $Λ$CDM Model in Crisis?
by: Chaudhary, Himanshu, et al.
Published: (2025)

Linear matter density perturbations in the $Λ_{\rm s}$CDM model: Examining growth dynamics and addressing the $S_8$ tension
by: Akarsu, Özgür, et al.
Published: (2025)

Probing the sensitivity of dark energy dynamics to equation of state parametrization flexibility
by: Hossain, Md. Wali
Published: (2025)

Matching JWST UV Luminosity Functions with Refined $Λ$CDM Halo Models
by: Fakhry, Saeed, et al.
Published: (2025)

Comparison of $Λ$CDM and $R_h = ct$ with updated galaxy cluster $f_{gas}$ measurements using Bayesian inference
by: Panchal, Kunj, et al.
Published: (2024)