31 October 2025 to 1 November 2025
North Lakhimpur University
Asia/Kolkata timezone
Call for Abstracts in Now Open!

Reconstruction of f(R) Gravity in Kaniadakis Holographic Dark Energy Model

Not scheduled
20m
Physics Gallery, Conference Hall, Digital Classroom, and Ranghar Auditorium (North Lakhimpur University)

Physics Gallery, Conference Hall, Digital Classroom, and Ranghar Auditorium

North Lakhimpur University

Khelmati, Lakhimpur, Assam-787031, India
Oral Track 01: High Energy Physics, Gravitation and Cosmology

Speaker

Kalyan Malakar (Dibrugarh University, Dibrugarh, Assam. PIN: 786004)

Description

Kaniadakis Holographic Dark Energy extends the standard holographic dark energy (HDE) model by integrating Kaniadakis entropy, a generalization of the classical Bekenstien-Hawking entropy. Kaniadakis entropy incorporates relativistic statistical mechanics into standard HDE model and is characterized by a deformation parameter K. This study aims to construct a new form of f(R) gravity theory by inserting the Kaniadakis holographic dark energy within the framework of the FLRW metric. The proposed model is then evaluated for its effectiveness in explaining the phenomenon of late-time cosmic acceleration. The viability of the model is assessed through several key criteria: the positivity of the effective gravitational coupling to avoid ghost instabilities; stability under cosmological perturbations and positivity of the scalar mode to preclude tachyonic behavior; consistency with the ΛCDM limit in the high-curvature regime; the emergence of a stable de Sitter phase at late times; and compatibility with local gravity tests via a chameleon mechanism. This work collectively tries to test and ensure the theoretical soundness and observational relevance of the reconstructed f(R) framework.

Author

Kalyan Malakar (Dibrugarh University, Dibrugarh, Assam. PIN: 786004)

Co-authors

Prof. Kalyan Bhuyan (Dibrugarh University) Dr Mrinnoy Gohain (Dibrugarh University) Mr Rajdeep Mazumdar (Dibrugarh University)

Presentation materials