Simulating the multi-scale physics of AGN fueling and feedback across cosmic time

Active Galactic Nuclei (AGN) feedback powered by gas accretion onto supermassive black holes (SMBHs) likely plays a key role in the formation and evolution of galaxies and large-scale structure, but understanding the detailed physics and impact of SMBH accretion and feedback across cosmic time remains a major challenge. Recent numerical hyper-refinement techniques are enabling simulations modeling explicitly the transport of gas down to sub-pc scales in galactic nuclei while capturing the interaction of fast accretion-disk winds with multi-phase gas from sub-pc to circumgalactic medium scales. In this talk, I will review recent progress in our understanding of SMBH-galaxy coevolution from simulations addressing (1) the physical drivers of luminous quasars at cosmic noon, (2) the impact of quasar-driven winds in massive galaxies at their peak of activity, (3) the delicate balance of AGN fueling and feedback in Seyfert galaxies in the local universe, and (4) the intriguing nature of Little Red Dots in the early universe.