Qutip

This gives Claude full access to QuTiP, the standard Python library for quantum mechanics simulations. You get everything from basic qubit operations and Bloch sphere visualizations to solving master equations for open quantum systems and running Monte Carlo trajectories. The skill covers closed and open system dynamics with multiple solvers (sesolve, mesolve, mcsolve), handles time-dependent Hamiltonians, and includes analysis tools for entanglement, fidelity, and correlation functions. It's genuinely comprehensive, with detailed references for time evolution, visualization methods, and advanced techniques like Floquet theory and HEOM. If you're simulating anything quantum, from cavity QED to quantum circuits, this has the tools and the documentation to get it done.