Geomeric phases in Quantum Mechanics

Details Geomeric phases in Quantum Mechanics Geomeric phases in Quantum Mechanics

2009-09-22

arxiv.org/abs/0909.3958v1

Physics

Quantum Physics

31 pages

Scientific paper

Various phenomena related to geometric phases in quantum mechanics are reviewed and explained by analyzing some examples.The concepts of 'parallelism' ,'connections' and 'curvatures' are applied to Aharonov-Bohm (AB) effect, to U(1)phase rotation, to SU(2) phase rotation and to holonomic quantum computation (HQC). The connections in Schrodinger equations are treated by two alternative approaches. Implementation of HQC is demonstrated by the use of 'dark states' including detailed calculations with the connections, for implementing the quantum gates. 'Anyons' are related to the symmetries of the wave functions,in a two-dimensional space, and the use of this concept is demonstrated by analyzing an example taken from the field of Quantum Hall effects.

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