An ultraviolet completion specifies a theory valid at higher energies whose low-energy limit gives an effective field theory. For large-field cosmic inflation, it may also need to control the potential over a large field range, which is distinct from the energy scale of a process.
Articles by others on the same topic
Ultraviolet (UV) completion refers to a theoretical framework within particle physics that addresses the behavior of a quantum field theory at very high energy scales. In many quantum field theories (QFTs) or models, the interactions and particles exhibit divergences or inconsistencies when energy scales approach very high values, typically on the order of the Planck scale (\(10^{19}\) GeV) or at energies significantly higher than those probed by current experiments.