中国物理B ›› 2024, Vol. 33 ›› Issue (3): 30204-030204.doi: 10.1088/1674-1056/acfaf9

• • 上一篇    下一篇

Quintessence anisotropic stellar models in quadratic and Born-Infeld modified teleparallel Rastall gravity

Allah Ditta1, Tiecheng Xia(夏铁成)1,†, Irfan Mahmood2, and Asif Mahmood3,‡   

  1. 1 Department of Mathematics, Shanghai University and Newtouch Center for Mathematics of Shanghai University, Shanghai 200444, China;
    2 Centre for High Energy Physics, University of the Punjab, Lahore, Pakistan;
    3 College of Engineering, Chemical Engineering Department, King Saud University Riyadh, Saudi Arabia
  • 收稿日期:2023-08-02 修回日期:2023-08-31 接受日期:2023-09-19 出版日期:2024-02-22 发布日期:2024-02-29
  • 通讯作者: Tiecheng Xia, Asif Mahmood E-mail:xiatc@shu.edu.cn;ahayat@ksu.edu.sa
  • 基金资助:
    Allah Ditta and Xia Tiecheng acknowledge this paper to be funded by the National Natural Science Foundation of China (Grant No. 11975145). Asif Mahmood would like to acknowledge Researchers Supporting Project Number (RSP2024R43), King Saud University, Riyadh, Saudi Arabia.

Quintessence anisotropic stellar models in quadratic and Born-Infeld modified teleparallel Rastall gravity

Allah Ditta1, Tiecheng Xia(夏铁成)1,†, Irfan Mahmood2, and Asif Mahmood3,‡   

  1. 1 Department of Mathematics, Shanghai University and Newtouch Center for Mathematics of Shanghai University, Shanghai 200444, China;
    2 Centre for High Energy Physics, University of the Punjab, Lahore, Pakistan;
    3 College of Engineering, Chemical Engineering Department, King Saud University Riyadh, Saudi Arabia
  • Received:2023-08-02 Revised:2023-08-31 Accepted:2023-09-19 Online:2024-02-22 Published:2024-02-29
  • Contact: Tiecheng Xia, Asif Mahmood E-mail:xiatc@shu.edu.cn;ahayat@ksu.edu.sa
  • Supported by:
    Allah Ditta and Xia Tiecheng acknowledge this paper to be funded by the National Natural Science Foundation of China (Grant No. 11975145). Asif Mahmood would like to acknowledge Researchers Supporting Project Number (RSP2024R43), King Saud University, Riyadh, Saudi Arabia.

摘要: This study aims to discuss anisotropic solutions that are spherically symmetric in the quintessence field, which describe compact stellar objects in the modified Rastall teleparallel theory of gravity. To achieve this goal, the Krori and Barua arrangement for spherically symmetric components of the line element is incorporated. We explore the field equations by selecting appropriate off-diagonal tetrad fields. Born-Infeld function of torsion f(T)=βλT+1-1 and power law form h(T)=δTn are used. The Born-Infeld gravity was the first modified teleparallel gravity to discuss inflation. We use the linear equation of state pr=ξρ to separate the quintessence density. After obtaining the field equations, we investigate different physical parameters that demonstrate the stability and physical acceptability of the stellar models. We use observational data, such as the mass and radius of the compact star candidates PSRJ 1416-2230, Cen X-3, & 4U 1820-30, to ensure the physical plausibility of our findings.

关键词: anisotropic spheres, quintessence field, modified Rastall teleparallel gravity, equation of state (EoS), f(T) gravity

Abstract: This study aims to discuss anisotropic solutions that are spherically symmetric in the quintessence field, which describe compact stellar objects in the modified Rastall teleparallel theory of gravity. To achieve this goal, the Krori and Barua arrangement for spherically symmetric components of the line element is incorporated. We explore the field equations by selecting appropriate off-diagonal tetrad fields. Born-Infeld function of torsion f(T)=βλT+1-1 and power law form h(T)=δTn are used. The Born-Infeld gravity was the first modified teleparallel gravity to discuss inflation. We use the linear equation of state pr=ξρ to separate the quintessence density. After obtaining the field equations, we investigate different physical parameters that demonstrate the stability and physical acceptability of the stellar models. We use observational data, such as the mass and radius of the compact star candidates PSRJ 1416-2230, Cen X-3, & 4U 1820-30, to ensure the physical plausibility of our findings.

Key words: anisotropic spheres, quintessence field, modified Rastall teleparallel gravity, equation of state (EoS), f(T) gravity

中图分类号:  (Partial differential equations)

  • 02.30.Jr