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QGeo: A Python Package for Calculating Geodesic Control Functions for Quantum Computing

Sean T. Crowe, Joshua J. Leiter, John P. T. Stenger, Zachary L. Barvian, Joseph A. Diaz, Shoshana Kinzel, Joanna N. Ptasinski, D. Gunlycke·April 22, 2025·DOI: 10.3390/quantum8020030
Physics

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Abstract

We present a new Python package that uses the formalism of geometric quantum complexity to numerically compute metric-dependent geometric cost and control functions associated with preparing a given unitary transformation on a quantum computer. The numerical procedure we implement is presented and discussed. Analyzed quantum circuits include: the quantum Fourier transform for up to four qubits, a random circuit with depth 100, and a circuit for analyzing the evolution of a fermionic chain with several lattice sites.

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