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Geometric phase; density operator; Pancharatnam connection

For a general evolution of a quantal system, the geometric phase measured with reference to a given initial state is derived as an integral of a function of the pure state density operator by invoking the Pancharatnam connection continuously.

Apoorva G Wagh¹ Veer Chand Rakhecha¹

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

Published

November 1993

Manuscript received

1 September 1993