反对称张量场内膨胀势力学中的标量模式与向量模式
广义相对论与量子宇宙学
2025-10-27 v1 宇宙学与河外天体物理
摘要
We investigate the scalar and vector modes arising from cosmological perturbations within the framework of an inflationary scenario driven by an antisymmetric tensor field, minimally coupled to gravity. After eliminating gauge artifacts, there remain four scalar and six vector modes of interest which can be studied separately. We analyze the stability of these modes, while looking for generic instabilities like ghost and gradient instabilities that could potentially plague the theory. Further, we investigate the evolution of these modes across different regimes, particularly subhorizon and superhorizon scales.
引用
@article{arxiv.2508.10159,
title = {Scalar and vector modes in inflation with antisymmetric tensor field},
author = {Abhijith Ajith and Sukanta Panda},
journal= {arXiv preprint arXiv:2508.10159},
year = {2025}
}