Analytical Study of Bouncing Cosmology in f(Q,C) Gravity With Generalized Infrared Cutoffs


Ghosh M., AKTAŞ C., Chattopadhyay S.

Fortschritte der Physik, cilt.74, sa.3, 2026 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 74 Sayı: 3
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1002/prop.70083
  • Dergi Adı: Fortschritte der Physik
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, INSPEC, MathSciNet, zbMATH
  • Anahtar Kelimeler: bouncing scale factor, f(Q,C)$f(Q,C)$ gravity, holographic fluid
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this work, we have studied bouncing cosmology in (Formula presented.) gravity framework. This gravity theory is an extension of (Formula presented.) gravity where a boundary term (Formula presented.) is also included. We have considered holographic fluid with generalized infrared cut-offs to drive the bounce. For some chosen forms of (Formula presented.), we have discussed the bouncing behavior with scale factors derived from the IR cutoffs of some generalized forms of holographic fluid considered as bouncing fluid. We have checked the null-energy condition for our models and also discussed the second law of thermodynamics in this setup. The analysis shows that the models can produce bouncing solutions, which are mathematically consistent and can give possible explanation to the early universe without an initial singularity. The study also indicates that (Formula presented.) gravity with generalized cut-offs may be useful to understand cosmic evolution beyond standard (Formula presented.).