Watch a 40-minute colloquium talk from the Centre for Quantum Technologies where Jon Allcock from Tencent introduces TensorCircuit, an open source quantum circuit simulator. Explore how this innovative framework leverages tensor network contraction and integrates with machine learning platforms to enable advanced quantum circuit simulation. Learn about key features including automatic differentiation, just-in-time compilation, vectorized parallelism, and hardware acceleration that allow for simulating larger and more complex quantum circuits compared to existing simulators. Discover how TensorCircuit is particularly optimized for variational algorithms using parameterized quantum circuits and hybrid quantum-classical neural networks in the NISQ (Noisy Intermediate-Scale Quantum) era.