English

Unified Lagrangian for Tachyon, Quintessence, and Phantom Scalar Fields

General Relativity and Quantum Cosmology 2025-07-16 v2

Abstract

This paper presents a novel unified Lagrangian density that combines the behaviors of tachyon, quintessence, and phantom scalar fields within the realms of theoretical physics and cosmology. The unified Lagrangian is formulated, where f(α)f(\alpha) is a function that accommodates different scenarios and captures the distinct characteristics of these scalar fields. The potential function V(ϕ)V(\phi) is incorporated to account for the specific properties of the scalar fields. The study employs numerical simulations in Python to thoroughly analyze the dynamics of the scalar fields for various α\alpha values, investigating the cosmological behavior.

Keywords

Cite

@article{arxiv.2308.06505,
  title  = {Unified Lagrangian for Tachyon, Quintessence, and Phantom Scalar Fields},
  author = {Tanisha Joshi},
  journal= {arXiv preprint arXiv:2308.06505},
  year   = {2025}
}

Comments

The work is undergoing significant updates that will materially change its results, conclusions, or structure. After further review, the authors identified fundamental issues in the data, methodology, or interpretation that compromise the validity of the findings