Cosmological twinlike models with multi scalar fields

• 来源期刊: 中国科学（物理学 力学 天文学）
• 年，卷（期）: 2018,（9）
• 页码范围: 31-36
• 页数: 6页
• 语种: 中文

摘要

In this study,we consider cosmological models driven by several canonical or noncanonical scalar fields,and we show the manner in which twinlike models for a canonical model can be constructed from noncanonical ones using the superpotential method.We conclude that it is possible to construct twinlike models for multifield cosmological models,even with a nonzero spatial curvature.This work extends the discussions of [D.Bazeia,and J.D.Dantas,Phys.Rev.D 85,067303 (2012)] to cases with multi scalar fields and with non-vanished spatial curvature,by using a different superpotential method.