barren plateaus
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Diagnosing and Avoiding Barren Plateaus in PennyLane
Understand why barren plateaus occur in deep variational circuits, how to detect them in PennyLane, and practical strategies to avoid them including layerwise training and structured ansatze.
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Quantum Natural Gradient in PennyLane
Implement quantum natural gradient descent in PennyLane using the quantum Fisher information matrix. Compare convergence against standard gradient descent on a VQE benchmark.