250 citations
- Birla Institute of Technology and Science, PilaniIN245 papers
- Indira Gandhi Institute of TechnologyIN34 papers
- Homi Bhabha National InstituteIN19 papers
- Indian Institute of Technology HyderabadIN12 papers
- Universiti Tunku Abdul RahmanMY11 papers
- Zhejiang Normal UniversityCN11 papers
- Main Astronomical ObservatoryUA10 papers
- Taras Shevchenko National University of KyivUA10 papers
- Uppsala UniversitySE10 papers
- Government of West BengalIN9 papers
- Institute of Mathematical SciencesIN9 papers
- Vellore Institute of Technology UniversityIN9 papers
343 papers
Reconstruction of a dark energy model for the Dirac-Born-Infeld scalar field with the Hubble and DESI data via Gaussian process
Sayantan Ghosh, Gaurav N. Gadbail, P. K. Sahoo +1
In this study, we reconstruct the dark energy (DE) as a Dirac-Born-Infeld (DBI) scalar field from the Hubble dataset (32 CC + 26 BAO) and the DESI dataset using the Gaussian proces…
Kinematic Probes of Type-II MMG: Padé Cosmographic Analysis of VCDM
Soumya Kanta Bhoi, Sai Swagat Mishra, P. K. Sahoo
We study the late-time expansion history of the Universe within the VCDM model, a Type-II MMG realization that preserves the successes of General Relativity while extending beyond…
Co-rotating Vortices on Surfaces of Variable Negative Curvature: Hamiltonian Structure and Curvature-Induced Drift
Gaurang Mangesh Joshi, Rickmoy Samanta
Vortices in fluids and superfluids are fundamental to phenomena ranging from Bose-Einstein condensates and superfluid films to neutron stars and hydrodynamic micro-rotors, where ba…
Late-Time Cosmic Acceleration in Ricci-Gauss-Bonnet Gravity via Gradient Descent Optimization
Santosh V. Lohakare, B. Mishra, S. K. Maurya
We study the late-time evolution of the Universe within the f(R,G) gravity framework, where R is the Ricci scalar and G is the Gauss-Bonnet term. To make the model tractable, we pr…
Finite-size scaling properties of classical random walk on various two-dimensional lattices
Nimish Sharma, Tanay Nag
We consider various two-dimensional lattices such as square, Kagome, Lieb, honeycomb, dice lattices of finite extent, to study the effect of lattice profile in terms of the number…
Beyond the Cosmological Constant: Breaking the Geometric Degeneracy of cosmology via Redshift-Space Distortions
Ameya Kolhatkar, P. K. Sahoo
We present a rigorous theoretical and observational analysis of the Hybrid class of models by including the late-time modifying term. After deriving strict viabili…