Quantum Gravity Experiments: A Biased Overview of Recent Developments

Explore a comprehensive lecture on experimental approaches to quantum gravity presented by LBNL Staff Scientist Dan Carney. Delve into the various experimental proposals from the past decades designed to detect quantum signatures in gravitational phenomena. Learn about tabletop experiments investigating coherence and entanglement in Newtonian interactions, methods for measuring quantization effects in gravitational radiation fields and the cosmic microwave background, and searches for holographic noise. Gain clarity on how these experiments relate to predictions from perturbative gravity treated as a standard effective quantum field theory. Drawing from his background in string theory and work at the theory-experiment interface, Carney discusses how quantum information science concepts inform our understanding of fundamental physics, particularly in measurement theory as applied to particle physics and gravity. Understand the potential role of quantum measurement limits in developing a consistent quantum model of general relativity, with applications extending to quantum metrology and computing.