Research in Engineering and Aviation

On the Removability of Berry’s Phase

September 1989

Author(s): Giavarini, G., Gozzi, E., Rohrlich, D., and Thacker, W.D.

Journal: Journal of Physics A, Vol. 22, 3513-3529 (1989). DOI: 10.1088/0305-4470/22/17/017


The authors present a thorough analysis of the removability of the Berry phase. They show that for any system they can, by properly restricting the parameter space turn the geometrical phase into an extra shift of the dynamical one. However, this extra shift in the dynamical phase retains its truly geometrical character. The removability is thus only apparent and the geometrical phase can still be measured in interference experiments, as indeed has already been done several times.