Quantum Mechanics Meets Cosmology

This chapter explores the complex relationship between quantum mechanics and cosmology, focusing on how the universe's expansion affects quantum states and the challenges in applying Bell inequalities in such contexts. It discusses the significance of the inflaton and gravitational waves in understanding quantum gravity, while also reflecting on historical evidence for the quantum nature of gravity. The conversation emphasizes the need for interdisciplinary collaboration to advance our understanding of these intricate scientific challenges and the role of quantum information in addressing unresolved puzzles in cosmology.