TL;DR: PennyLane is Xanadu's open-source framework for quantum machine learning and differentiable quantum computing. Its key innovation is automatic differentiation through quantum circuits, enabling gradie
PennyLane is Xanadu's open-source framework for quantum machine learning and differentiable quantum computing. Its key innovation is automatic differentiation through quantum circuits, enabling gradient-based optimization of variational algorithms. PennyLane integrates with classical ML frameworks (PyTorch, TensorFlow, JAX) and supports 30+ quantum hardware backends, making it the most portable QML framework.
Type
Quantum machine learning framework
Features
Differentiable quantum circuits, automatic differentiation, ML integration (PyTorch/TensorFlow/JAX), multi-backend support
Status
Open source; leading QML framework; supports 30+ quantum backends