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Spinor; SU(2) phase; Pancharatnam phase; geometric phase; dynamical phase; noncyclic phase; neutron interferometry; neutron polarimetry

We present an overview of polarized neutron experiments observing SU(2) phases. The first experimental separation of geometric and dynamical phases, the explicit verification of Pauli anticommutation and the first observation of interference amplitudes and phases in noncyclic evolutions are described. These experiments elucidate the physics of phases and phase jumps propounded by the Pancharatnam connection.

Veer Chand Rakhecha¹ Apoorva G Wagh¹

1. Bhabha Atomic Research Centre, Solid State Physics Division, Mumbai - 400 085, India

Published

3 February 2001