The role of boundary conditions in quantum computations of scattering observables

Understand

Quantum computing may offer the opportunity to simulate strongly-interacting field theories, such as quantum chromodynamics, with physical time evolution.

• This would give access to Minkowski-signature correlators, in contrast to the Euclidean calculations routinely performed at present.
• However, as with present-day calculations, quantum computation strategies still require the restriction to a finite system size, including a finite, usually periodic, spatial volume.
• In this work, we investigate the consequences of this in the extraction of hadronic and Compton-like scattering amplitudes.