Physical Review
Observability of the Sign Change of Spinors under 2 π Rotations
Yakir Aharonov, Leonard Susskind
Abstract
We consider the observability of the sign change of spinors under $2\ensuremath{\pi}$ rotations. We show that in certain circumstances there are observable consequences of such rotations, contrary to the classical case. We suggest experiments which can in principle be done to demonstrate such effects.