A note on geometric phases
Dipartimento di Fisica Nucleare e Teorica dell'Università
INFN, Sezione di Pavia - Via Bassi 6, I-27100 Pavia, Italy
Accepted: 28 April 1998
The usual definition of a geometric phase involves particular conditions on the behaviour of the state vector of a quantum system. We show that they can be removed in some cases by appealing directly to the Schrödinger equation. In this way we obtain an extension of a family of geometric phases previously introduced by us.
PACS: 03.65.Bz – Foundations, theory of measurement, miscellaneous theories (including Aharonov-Bohm effect, Bell inequalities, Berry's phase)
© EDP Sciences, 1998