Spin Coherence: Double Quantum Coherence

This lecture covers topics such as spin echo, spin operator formalism, quadrupolar echoes, and double quantum coherence. It delves into the coherent spin dynamics, quantum mechanics of spin echo, and coherence transfer. The instructor explains the generation of entangled quantum logic gates and the concept of spin coherences and hyper-polarization. Throughout the lecture, the audience learns about the rotation operators, density matrix, and two-dimensional spectroscopy in the context of spin dynamics.