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The quantum geometric tensor from generating functions

Mar 22, 2019

18 pages

Published in:

Int.J.Quant.Inf. 17 (2019) 02, 1950017

Published: Mar 22, 2019

DOI:

10.1142/S0219749919500175

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AMS MathSciNet

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Abstract: (WSP)

We introduce a new method to compute the Quantum Geometric Tensor, this procedure allows us to compute the Quantum Information Metric and the Berry curvature perturbatively for a theory with an arbitrary interaction Hamiltonian. The calculation uses the generating function method, and it is illustrated with the harmonic oscillator with a linear and a quartic perturbation.

Quantum information metric
Berry’s curvature
path integral
generating function, perturbative methods

References(23)

Figures(0)

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