The lecture slides are available here.

Amplitude Amplification, a key concept in quantum computing, involves the repeated application of the flip to increase the chances of finding a marked value in a quantum register. This combination proves to be powerful, increasing the probability of success when applied iteratively. However, a delicate balance exists between the number of iterations and the resulting success probability, with diminishing returns after a certain point.

AA's practical applications can provide a quadratic speedup in solving problems that involve repeatedly checking the validity of a solution, such as Boolean satisfiability and optimization tasks.