GRAPE Tutorials

These tutorials introduce you to GRAPE (Gradient Ascent Pulse Engineering) for quantum optimal control. Work through them sequentially for the best learning experience.

Getting Started

• GRAPE for CNOT
• Hadamard Gate Synthesis Example

Advanced Topics

• GRAPE for time-dependent hamiltonians
• Density Matrix Examples

Preparing a cat state

• GRAPE for preparing a cat state using L-BFGS Tutorial
• GRAPE for preparing a cat state using Adam Tutorial

Note

Here we note that sometimes different optimizers may navigate the cost landscape better, as you notice from the ability of the l-bfgs optimization algorithm to converge at a global minima while using adam led to being stuck at a local minima.

Open Systems

• GRAPE for systems with Dissipation example

Note

The dissipative_tutorial shows how to optimize control pulses for dissipative state preparation by passing hamiltonians and jump operators.