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.

对称远平行引力是一种特殊的引力理论，与消失的仿射连接一致。该理论是广义相对论的替代和更简单的几何公式​​，其中非度量Q驱动引力相互作用。我们的兴趣在于在这个框架内探索平坦的弗里德曼-利马特-罗伯逊-沃克时空中的宇宙弹跳场景。我们探索具有两种不同拉格朗日形式的f ( Q ) 的弹跳场景，例如对Q的线性和非线性依赖。我们已经成功地检查了两种模型的所有能量条件和稳定性分析，以呈现物质反弹。