Ruban Universe Model Solutions with Scalar Field in <i>f</i>(<i>R</i>, <i>T</i>) Gravity

AYGÜN S., Aktaş A.

IRANIAN JOURNAL OF SCIENCE, cilt.49, sa.1, ss.253-258, 2025 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49 Sayı: 1
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s40995-024-01652-6
  • Dergi Adı: IRANIAN JOURNAL OF SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.253-258
  • Anahtar Kelimeler: f(RT) theory, Ruban universe, Scalar field
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this study, normal, phantom scalar fields (SF) and massive scalar field (MSF) solutions were investigated in f(R,T) andGeneral Relativity theories (GRT) for inhomogeneous and anisotropic Ruban space-time, which is believed to represent thefirst moments of the universe. Solutions were obtained by using the A(x,t)=(xB(t))(n) relation between the metricpotentials of the Ruban universe and the scalar potential models V(phi)=V-0 and V(phi)=V(0)e-(a phi(t)). Obtained results aresupported by graphics. The solutions obtained for scalar fields are compatible with the studies of Aygu n (Gravit Cosmol24:302-307, 2018) and Singh and Singh (Astrophys Space Sci 356:153-162, 2015).