PIRSA:21060052

Progress and prospects in the mingling of quantum-scattering-amplitudes, post-Minkowskian, post-Newtonian, and self-force calculations

Vines, J. (2021). Progress and prospects in the mingling of quantum-scattering-amplitudes, post-Minkowskian, post-Newtonian, and self-force calculations. Perimeter Institute. https://pirsa.org/21060052

Vines, Justin. Progress and prospects in the mingling of quantum-scattering-amplitudes, post-Minkowskian, post-Newtonian, and self-force calculations. Perimeter Institute, Jun. 10, 2021, https://pirsa.org/21060052 

          @misc{ pirsa_PIRSA:21060052,
            doi = {10.48660/21060052},
            url = {https://pirsa.org/21060052},
            author = {Vines, Justin},
            keywords = {Other},
            language = {en},
            title = {Progress and prospects in the mingling of quantum-scattering-amplitudes, post-Minkowskian, post-Newtonian, and self-force calculations},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {jun},
            note = {PIRSA:21060052 see, \url{https://pirsa.org}}
          }

Justin Vines

Max Planck Institute for Gravitational Physics (Albert Einstein Institute)

Talk number
PIRSA:21060052
Collection
Talk Type
Subject
Abstract
Recent years have seen a surge of progress in post-Minkowskian (PM, weak-field but arbitrary-speed) approximation methods for the gravitational two-body problem, complementing and reorganizing the still much further developed post-Newtonian (PN, weak-field and slow-motion) approximation. This has been driven by simplifying insights, powerful computational tools, and new results coming from the study of on-shell scattering amplitudes in quantum field theories and their classical limits. We will review some of these developments, focusing on the particularly impactful observation (ultimately also understandable from a purely classical perspective but born of the dialog with quantum amplitudes) that certain PM and PN results for arbitrary mass ratios can be determined from surprisingly low orders in the extreme-mass-ratio/self-force expansion.