Quantum Information Metric and Berry Curvature from a Lagrangian Approach
arXiv:1702.00058 · doi:10.1007/JHEP03(2017)044
Abstract
We take as a starting point an expression for the quantum geometric tensor recently derived in the context of the gauge/gravity duality. We proceed to generalize this formalism in such way it is possible to compute the geometrical phases of quantum systems. Our scheme provides a conceptually complete description and introduce a different point of view of earlier works. Using our formalism, we show how this expression can be applied to well-known quantum mechanical systems.
33 pages, references added and minor comments
References in corpus (3)
Cited by in corpus (17)
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