The geometric approach to quantum mechanics initiated by Berry’s remarkable discovery [Proc. R. Soc. London Ser. A 392, 45 (1984)] of the anholonomy of the phase of the wave function and subsequent developments leading to a recent reformulation of the geometry of quantum evolution by Anandan and Aharonov [Phys. Rev. Lett. 65, 1697 (1990)] is shown to find an explicit and suggestive realization through the coherent-state representation.

• Received 5 November 1990

DOI:https://doi.org/10.1103/PhysRevA.43.3217