most citedGeometrical phases for the G(4,2) Grassmannian manifold

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quant-ph2003★ 8 cited

Geometrical phases for the G(4,2) Grassmannian manifold

Regina Karle, Jiannis Pachos

We generalize the usual abelian Berry phase generated for example in a system with two non-degenerate states to the case of a system with two doubly degenerate energy eigenspaces.…