Cosmological bouncing scenarios in symmetric teleparallel gravity
Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, 500078, Hyderabad, India
2 Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics, 010009, Nur-Sultan, Kazakhstan
3 Gumilyov Eurasian National University, 010008, Nur-Sultan, Kazakhstan
Accepted: 11 July 2021
Published online: 20 July 2021
Symmetric teleparallel gravity is an exceptional theory of gravity that is consistent with the vanishing affine connection. This theory is an alternative and a simpler geometrical formulation of general relativity, where the nonmetricity Q drives the gravitational interaction. Our interest lies in exploring the cosmological bouncing scenarios in a flat Friedmann–Limaître–Robertson–Walker spacetime within this framework. We explore bouncing scenarios with two different Lagrangian forms of f(Q) such as a linear and nonlinear dependence on Q. We have successfully examined all the energy conditions and stability analysis for both models to present a matter bounce.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021