Reconstruction of ΛCDM universe in f(Q) gravity

• DOI: 10.1016/j.physletb.2022.137509
• Publication Date: 2022-10-17T13:32:59Z
• Authors: Gaurav N. Gadbail; Sanjay Mandal; P.K. Sahoo
• Keywords: Friedmann–Lemaître–Robertson–Walker metric; Scale factor (cosmology); Friedmann equations

In this manuscript, we present a number of fascinating explicit reconstructions for the $f(Q)$ gravity from background Friedmann-La\^imatre-Robertson-Walker (FLRW) evolution history. We find more general functions non-metricity scalar $Q$ that admit exact $\Lambda$CDM expansion Adding extra degrees freedom to matter sector is only method get scale factor behave in manner generic $Q$. addition, cosmological reconstruction modified constructed terms e-folding. It shown how any FLRW cosmology can arise specific theory. also reconstruct well-known examples cosmology.