Cover Image

Statistical consistency of sign-switching vacuum energy with cosmological observations

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Khandelwal, Sehjal, Capistrano, Abraão J. S., Kumar, Suresh
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

Probing late-time deviations from $Λ$CDM with a quadratic dark energy expansion
by: Khandelwal, Sehjal, et al.
Published: (2026)

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

Thermodynamics of sign-switching dark energy models
by: Tamayo, David
Published: (2025)

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

Revisiting CPL with sign-switching density: To cross or not to cross the NECB
by: Gökçen, Mine, et al.
Published: (2026)

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

Dynamical mechanism of vacuum energy compensation
by: Arbuzova, E. V., et al.
Published: (2025)

Origin of cosmological density perturbations from quantum fluctuations of vacuum in General Relativity
by: Lukash, Vladimir N., et al.
Published: (2025)

Interaction of polytropic dark energy in cosmological model: Constraints from observational data
by: Meetei, Elangbam Chingkheinganba, et al.
Published: (2025)

Analysis of Pantheon+ supernova data suggests evidence of sign-changing pressure of the cosmological fluid
by: Çamlıbel, A. Kazım, et al.
Published: (2025)

Decaying vacuum energy, matter creation and cosmic acceleration
by: Chander, Lokesh, et al.
Published: (2025)

Field theory vacuum and entropic dark energy models
by: Maziashvili, Michael
Published: (2025)

Kinematic reconstruction of torsion as dark energy in Friedmann cosmology
by: Vicente, A. M., et al.
Published: (2024)

Multiple transitions in vacuum dark energy and $H_0$ tension
by: Moshafi, Hossein, et al.
Published: (2022)

Effects of the quantum vacuum at a cosmic scale and of dark energy
by: Santos, Emilio
Published: (2024)

On the energy flow of $λ$ in Hořava-Lifshitz cosmology
by: Czuchry, Ewa, et al.
Published: (2023)

Anisotropic cosmology using observational datasets: exploring via machine learning approaches
by: Bhardwaj, Vinod Kumar, et al.
Published: (2025)

Mass density vs. energy density at cosmological scales
by: Eingorn, Maxim, et al.
Published: (2023)

Non-singular bouncing cosmology in $f(T, \mathcal{T})$ gravity with energy condition violations
by: Zhadyranova, A., et al.
Published: (2025)

New cosmological constraints on the evolution of dark matter energy density
by: Yang, Yupeng, et al.
Published: (2025)

Interacting dark energy: clarifying the cosmological implications and viability conditions
by: van der Westhuizen, Marcel A., et al.
Published: (2023)

$w_{dm}$-$w_{de}$ cosmological model with new data samples of cosmological observations
by: Araya, Dorian, et al.
Published: (2025)

Constraints on cosmologically coupled black holes from gravitational wave observations and minimal formation mass
by: Amendola, Luca, et al.
Published: (2023)

Differential age observations and their constraining power in cosmology
by: Heinesen, Asta
Published: (2024)

Ripped ΛCDM: an observational contender to the consensus cosmological model
by: Lazkoz, R., et al.
Published: (2023)

Constraining dark energy cosmologies with spatial curvature using Supernovae JWST forecasting
by: Alonso, Pablo M. Maldonado, et al.
Published: (2023)

Simple Bianchi cosmologies with anisotropic Segre [1(11,1)] dark energy
by: Beltracchi, Philip
Published: (2024)

Particle production from non-minimal coupling in a symmetry breaking potential transporting vacuum energy
by: Belfiglio, Alessio, et al.
Published: (2023)

Measuring the speed of light with cosmological observations: current constraints and forecasts
by: Santos, Jaiane, et al.
Published: (2024)

Quintessence scalar field and cosmological constant: Dynamics of a multi-component dark energy model
by: Sahoo, Prasanta, et al.
Published: (2024)

New constraints on cosmological gravitational waves from CMB and BAO in light of dynamical dark energy
by: Wang, Sai, et al.
Published: (2025)

Dynamics of cosmological scalar fields
by: van Holten, J. W.
Published: (2023)

Can decaying vacuum solve the H_0 Tension?
by: Brito, L. S., et al.
Published: (2024)

Constraining ultra slow roll inflation using cosmological datasets
by: Ragavendra, H. V., et al.
Published: (2024)

Scaling solutions in three-form cosmology
by: da Fonseca, Vitor, et al.
Published: (2026)

Optimal parameterizations for observational constraints on thawing dark energy
by: Shlivko, David, et al.
Published: (2025)

Observational constraints on entropic cosmology
by: Chagoya, Javier, et al.
Published: (2024)

Impact of the cosmological expansion on spectral energy density of radiation in the intergalactic medium and once more about Olbers' paradox
by: Yang, Anguohao, et al.
Published: (2024)

Constraining anisotropic universe under $f(R,T)$ theory of gravity
by: Sharma, Lokesh Kumar, et al.
Published: (2024)

Hints of sign-changing scalar field energy density and a transient acceleration phase at $z\sim 2$ from model-agnostic reconstructions
by: Akarsu, Özgür, et al.
Published: (2026)