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GRAPE.jl: Gradient Ascent Pulse Engineering in Julia
Michael H. Goerz, Sebastián C. Carrasco, Alastair Marshall, Vladimir S. Malinovsky·November 3, 2025·DOI: 10.21105/joss.08813
Quantum Physics
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Abstract
The GRAPE$.$jl package (https://github.com/JuliaQuantumControl/GRAPE.jl) implements Gradient Ascent Pulse Engineering, a widely used method of quantum optimal control. Its purpose is to find controls that steer a quantum system in a particular way. This is a prerequisite for next-generation quantum technology, such as quantum computing or quantum sensing. GRAPE$.$jl exploits the unique strengths of the Julia programming language to achieve both flexibility and numerical performance. It builds on the QuantumControl$.$jl framework.