2015/03/20 by John F. Donoghue, Donoghue, John F., Basem Kamal El-Menoufi +1
Computer Science · Physics and Astronomy · #Black Holes and Theoretical Physics #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Quantum Mechanics and Applications #Quantum, superfluid, helium dynamics #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.1503.06099
17 pages, 4 figures
arxiv created 2015/03/20 · openalex publication_date 2015/03/20 · arxiv updated 2015/03/23 · openalex created_date 2022/10/04 · openalex updated_date 2026/07/28
We discuss the derivation of the trace anomaly using a non-local effective action at one loop. This provides a simple and instructive form and emphasizes infrared physics. We then use this example to explore several of the properties of non-local actions, including displaying the action for the full non-local energy-momentum tensor. As an application, we show that the long-distance corrections at one loop lead to quantum violations of some classical consequences of the equivalence principle, for example producing a frequency dependence of the gravitational bending of light.