136 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- GLA UniversityIN10 papers
- Instituto Nacional de Pesquisas EspaciaisBR10 papers
- Shree Guru Gobind Singh Tricentenary UniversityIN10 papers
- Universidade Federal do Rio Grande do SulBR8 papers
- Istanbul Technical UniversityTR6 papers
- University of SheffieldGB5 papers
- Universidad Nacional Autónoma de MéxicoMX4 papers
- Birla Institute of Technology and Science, PilaniIN2 papers
- Kyoto UniversityJP2 papers
- National Institute of Technology KurukshetraIN2 papers
- Plaksha University2 papers
- Centre National de la Recherche ScientifiqueFR1 paper
27 papers
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 CDM model to include a…
Testing Exponential 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…
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…
Dynamical Dark Energy Signatures from a New Transition Parametrization in Flat FLRW Cosmology
Manish Yadav, Archana Dixit, Anirudh Pradhan +1
We investigate a cosmic scenario using a new transition parameterization of the diagnostic, , in the spatially flat Friedmann Lemaître Robertso…
Dynamical Oscillations in Dark Energy: Joint Constraints on the 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 based on the DESI BAO data together with OHD, Pantheon Plus, and SH0ES measurements. We exami…
Constraints on Spatial Curvature and Dark Energy Dynamics in the CDM Model from DESI DR1 and DR2
Manish Yadav, Archana Dixit, M. S. Barak +1
In this study, we investigate the CDM dynamical dark energy model with spatial curvature utilizing the recently released DESI Collaboration data (DR1 and DR2) in conjunction wit…
Beyond CDM: Exploring a Dynamical Cosmological Constant Framework Consistent with Late-Time Observations
Archana Dixit, Manish Yadav, Anirudh Pradhan +1
In this work, we investigate a cosmological scenario with a time-dependent cosmological constant (t) within the spatially flat Friedmann-Lemaître-Robertson-Walker (FLRW) framewo…
Investigating the CDM Model with Latest DESI BAO Observations
Manisg Yadav, Archana Dixit, M. S. Barak +1
In this study, we explore the impact of various combinations of CMB-independent datasets, including the recent DESI BAO measurements, on the equation of state (EoS) of dark energy…
Empirical Validation: Investigating the CDM Model with new DESI BAO Observations
Manish Yadav, Archana Dixit, Anirudh Pradhan +1
The CDM model has long served as the cornerstone of modern cosmology, offering an elegant and successful framework for interpreting a wide range of cosmological observations. Ho…
Prediction of Stocks Index Price using Quantum GANs
Sangram Deshpande, Gopal Ramesh Dahale, Sai Nandan Morapakula +1
This paper investigates the application of Quantum Generative Adversarial Networks (QGANs) for stock price prediction. Financial markets are inherently complex, marked by high vola…
Testing Gravity with Cosmological Observations: Confronting the Hubble Tension and Implications for the Late-Time Universe
Saurabh Verma, Archana Dixit, Anirudh Pradhan +1
In recent years, modifications to General Relativity (GR) have been explored to address cosmological observations, particularly in the context of late-time cosmic acceleration. Amo…
CDM cosmology: Alleviating major cosmological tensions by predicting standard neutrino properties
Anita Yadav, Suresh Kumar, Cihad Kibris +1
We investigate a two-parameter extension of the CDM model by allowing variations in the effective number of neutrino species and their total mass $\sum m_ν…
Cosmological constraints on CDM scenario in a type II minimally modified gravity
Özgür Akarsu, Antonio De Felice, Eleonora Di Valentino +5
The idea of a rapid sign-switching cosmological constant (mirror AdS-dS transition) in the late universe at , known as the CDM model, has significantly improve…
Effects of type Ia supernovae absolute magnitude priors on the Hubble constant value
Yun Chen, Suresh Kumar, Bharat Ratra +1
We systematically explore the influence of the prior of the peak absolute magnitude () of type Ia supernovae (SNe Ia) on the measurement of the Hubble constant () from SNe…
CDM cosmology from a type-II minimally modified gravity
Özgür Akarsu, Antonio De Felice, Eleonora Di Valentino +5
We integrate CDM, a promising scenario for alleviating cosmological tensions, into VCDM, a type-II minimally modified gravity. This promotes the scenario to a fully pred…
Observational bounds on extended minimal theories of massive gravity: New limits on the graviton mass
Antonio De Felice, Suresh Kumar, Shinji Mukohyama +1
In this work, we derive for the first time observational constraints on the extended Minimal Theory of Massive Gravity (eMTMG) framework in light of Planck-CMB data, geometrical me…
New late-time constraints on gravity
Suresh Kumar, Rafael C. Nunes, Supriya Pan +1
Modification of general relativity (GR) inspired by theories like gravity is among the most popular ones to explain the late-time acceleration of the Universe as an alternat…
Exploring the tension and the evidence of dark sector interaction from 2D BAO measurements
Armando Bernui, Eleonora Di Valentino, William Giarè +2
We explore observational constraints on a cosmological model with an interaction between dark energy (DE) and dark matter (DM), using a compilation of 15 measurements of the 2D BAO…
Relaxing cosmological tensions with a sign switching cosmological constant: Improved results with Planck, BAO, and Pantheon data
Ozgur Akarsu, Suresh Kumar, Emre Ozulker +2
We present a further observational analysis of the CDM model proposed in Akarsu et al. [Phys. Rev. D 104, 123512 (2021)]. This model is based on the recent conjecture su…
New cosmological constraints on gravity in light of full Planck-CMB and type Ia supernovae data
Suresh Kumar, Rafael C. Nunes, Priya Yadav
We investigate two new observational perspectives in the context of torsional gravitational modification of general relativity, i.e., the gravity: i) We use Pantheon data of…
Updating non-standard neutrinos properties with Planck-CMB data and full-shape analysis of BOSS and eBOSS galaxies
Suresh Kumar, Rafael C. Nunes, Priya Yadav
Using the latest observational data from Planck-CMB and its combination with the pre-reconstructed full-shape (FS) galaxy power spectrum measurements from the BOSS DR12 sample and…
New tests of dark sector interactions from the full-shape galaxy power spectrum
Rafael C Nunes, Sunny Vagnozzi, Suresh Kumar +2
We explore the role of redshift-space galaxy clustering data in constraining non-gravitational interactions between dark energy (DE) and dark matter (DM), for which state-of-the-ar…
Testing spatial curvature and anisotropic expansion on top of the CDM model
Ozgur Akarsu, Eleonora Di Valentino, Suresh Kumar +2
We explore the possible advantages of extending the CDM model by more realistic backgrounds compared to its spatially flat RW spacetime assumption, while preserving the underpin…
Relaxing cosmological tensions with a sign switching cosmological constant
Ozgur Akarsu, Suresh Kumar, Emre Ozulker +1
Inspired by the recent conjecture originated from graduated dark energy that the Universe has recently transitioned from anti-de Sitter vacua to de Sitter vacua, we extend the C…