3 papers
gr-qc2026
Observational and Thermodynamic aspects of one-dimensional Dark Energy EoS parametrization models
Anirban Chatterjee, Yungui Gong
We investigate the observational and thermodynamic viability of Gong-Zhang (GZ) Type~I (GZ1) and Type~II (GZ2) dark-energy parametrizations using late-time cosmological probes incl…
gr-qc2025
A comprehensive dynamical and phenomenological analysis of structure growth in curvature-modulated coupled quintessence scenario
Anirban Chatterjee, Yungui Gong
We investigate an interacting dark energy-dark matter model within the quintessence framework, characterized by the coupling term $Q_0 = ακÏ_m \dotÏ \left[1 - βR/(6H^2) \right…
gr-qc2025
Understanding curvature-matter interaction in viable dark energy models: A dynamical analysis approach
Anirban Chatterjee, Yungui Gong
We employ a linear stability analysis approach to explore the dynamics of matter and curvature-driven dark energy interactions within the framework of two types of viable gr…