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Title: Study of the Aharonov-Anandan quantum phase by NMR interferometry

Journal Article · · Phys. Rev. Lett.; (United States)

Aharonov and Anandan have recently reformulated and generalized Berry's phase by showing that a quantum system which evolves through a circuit C in projective Hilbert space acquires a geometrical phase ..beta..(C) related to the topology of the space and the geometry of the circuit. We present NMR interferometry experiments in a three-level system which demonstrate the Aharonov-Anandan phase and its topological invariance for different circuits.

Research Organization:
University of California and Lawrence Berkeley Laboratory, Berkeley, California 94720
DOE Contract Number:
AC03-76SF00098
OSTI ID:
5435736
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 60:13
Country of Publication:
United States
Language:
English