Interacting quintessence in light of generalized uncertainty principle: cosmological perturbations and dynamics

Abstract We consider a cosmological scenario endowed with an interaction between the universe’s dark components – matter and energy. Specifically, we assume component to be pressure-less fluid, while energy is quintessence scalar field Lagrangian function modified by quadratic Generalized Uncertainty Principle. The latter modification introduces new higher-order terms of fourth-derivative due quantum corrections in field’s equation motion. Then, investigate asymptotic dynamics general behaviour solutions equations for some interacting models special interests literature. At background level, present model exhibits matter-dominated de Sitter which are absent corresponding model. Furthermore, boost analysis, study linear perturbations Newtonian gauge where show how corrected from Depending on coupling parameters, wide range behavior.