Interacting quintessence in light of Generalized Uncertainty Principle: Cosmological perturbations and dynamics

Understand

We consider a cosmological scenario endowed with an interaction between the universe's dark components $-$ dark matter and dark energy.

• Specifically, we assume the dark matter component to be a pressure-less fluid, while the dark energy component is a quintessence scalar field with Lagrangian function modified by the quadratic Generalized Uncertainty Principle.
• The latter modification introduces new higher-order terms of fourth-derivative due to quantum corrections in the scalar field's equation of motion.
• Then we investigate asymptotic dynamics and general behaviour of solutions of the field equations for some interacting models of special interests in the literature.