instantonlike
Instanonlike is an adjective used in physics and mathematics to describe field configurations or phenomena that resemble instantons—localized, nonperturbative features in gauge theories that carry a nontrivial topological structure and influence quantum tunneling and vacuum structure. An instantonlike object typically shares several properties with true instantons: it is localized in Euclidean spacetime, contributes a finite action in semiclassical analyses, and is associated with a nonzero topological charge or a topological interpretation within an effective theory. However, by convention it is not assumed to be an exact solution of the classical field equations, or it may arise only approximately or in an effective description.
Common contexts where the term is used include lattice gauge theory, where smoothened configurations reveal localized
Notes: The precise meaning of “instantonlike” is context-dependent; authors may use it to describe genuine but