2023/12/19 by Tanisha Joshi, Joshi, Tanisha, S. D Pathak +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Quantum Mechanics and Applications
paper · pdf · doi:10.48550/arxiv.2312.12079
openalex publication_date 2023/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We proposed a generalized Lagrangian for three different classes of scalar fields namely quintessence(α=-1), phantom(α=0), and tachyonic (α=1) parameterized by α. These three scalar fields can be described by a common single Lagrangian called generalized scalar field Lagrangian and corresponding scalar field termed as generalized scalar field. We obtain mathematically consistent forms of generalized equations of motion from which individual equations of motion of quintessence, phantom, and tachyon can be recovered.