3 papers
gr-qc2025
Exploring Cosmological Implications of the Modified Raychaudhuri Equation in Non-Gravitating Vacuum Energy Theory
Arijit Panda, Eduardo Guendelman, Goutam Manna
This article investigates the modified Raychaudhuri Equation (RE) in the context of Non-Gravitating Vacuum Energy (NGVE) theory and its implications for various cosmological charac…
gr-qc2024
Thermodynamics of a Non-canonical gravity
Arijit Panda, Goutam Manna, Saibal Ray +2
This work comprises a study of the thermodynamic behavior of modified gravity, which had been developed based on a non-canonical theory known as K-essence theo…
gr-qc2024
Form Invariance of Raychaudhuri equation in the presence of Inflaton-type fields
Arijit Panda, Debashis Gangopadhyay, Goutam Manna
We show that the Raychaudhuri equation remains form invariant for certain solutions of scalar fields whose Lagrangian is non-canonical and of the form $\mathcal{L}(X,Ï)=-V(Ï…