Assertion: berry connection | /r/HasProperty | physical
Facets:
value: after integrating around a closed path
type: TEMPORAL
Source sentences:
text: In contrast to the Berry connection, which is physical only after integrating around a closed path, the Berry curvature is a gauge-invariant local manifestation of the geometric properties of the wavefunctions in the parameter space, and has proven to be an essential physical ingredient for understanding a variety of electronic properties.