A. Dixit

activity

20192026

most citedBarrow HDE model for Statefinder diagnostic in FLRW Universe

58 citations · 457 across the 34 of their papers we have counts for

collaborators

Showing 2026Show all

7 papers · 1 filter

gr-qc2026

Hu-Sawicki $f (R)$ Gravity in a Non-Flat Universe: Constraints from DESI-DR2, BBN, and Type Ia Supernovae

Saurabh Verma, Manish Yadav, Archana Dixit +2

Late-time cosmic acceleration is conventionally ascribed to a cosmological constant, though $Λ$ CDM continues to face several theoretical difficulties that keep alternative gravity…

astro-ph.CO2026

Testing a Sign-Switch Cosmological Model with Curvature through Latest Planck 2018, DESI DR2 and PantheonPlus\&SH0ES Observational Data

Archana Dixit, Manish Yadav, Anirudh Pradhan +1

We investigate the spatial geometry of the Universe within the framework of a sign-switch dark energy scenario by extending the recently proposed $Λ_{s}$ CDM model to include a…

gr-qc2026★ 2 cited

Testing Exponential $f (R)$ Gravity with CMB, DESI-DR2, and Supernova Data

Saurabh Verma, Archana Dixit, Anirudh Pradhan +1

One of the most popular competitors to the CDM paradigm as an explanation for the late-time acceleration of the universe is the modification of general relativity (GR), with models…

physics.gen-ph2026

Alleviating the Hubble Tension with Logarithmic Dark Energy: Constraints on the $w_{l o g}$ CDM Model

Saurabh Verma, Archana Dixit, Anirudh Pradhan +1

Observational constraints are considered on a $w_{l o g}$ CDM model of the dark energy equation of state, $w_{d} (z) = w_{0} + w_{a} (\frac{l n ( 2 + z )}{1 + z} - ln 2)$ , using…

physics.gen-ph2026

Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations

Archana Dixit, Saurabh Verma, Anirudh Pradhan +1

This study investigates and compares two prominent two-dimensional dark energy (DE) parameterizations: Barboza-Alcaniz (BA) and Logarithmic forms by comparing them with a comprehen…

gr-qc2026★ 2 cited

Dynamical Dark Energy Signatures from a New Transition $O m (z)$ Parametrization in Flat FLRW Cosmology

Manish Yadav, Archana Dixit, Anirudh Pradhan +1

We investigate a cosmic scenario using a new transition parameterization of the $O m (z)$ diagnostic, $O m (z) = \frac{z ^{l}}{( 1 + z ) ^{m}}$ , in the spatially flat Friedmann Lemaître Robertso…

physics.gen-ph2026★ 4 cited

Dynamical Oscillations in Dark Energy: Joint Constraints on the $w_{s in}$ CDM Model from DESI, OHD, and Supernova Samples

Manish Yadav, Archana Dixit, M. S. Barak +1

In this study, we investigate the oscillatory dark energy model $w_{s i n} CDM$ based on the DESI BAO data together with OHD, Pantheon Plus, and SH0ES measurements. We exami…

Hu-Sawicki f(R) Gravity in a Non-Flat Universe: Constraints from DESI-DR2, BBN, and Type Ia Supernovae

Testing a Sign-Switch Cosmological Model with Curvature through Latest Planck 2018, DESI DR2 and PantheonPlus\&SH0ES Observational Data

Testing Exponential f(R) Gravity with CMB, DESI-DR2, and Supernova Data

Alleviating the Hubble Tension with Logarithmic Dark Energy: Constraints on the wlog​CDM Model