100 Years of Quantum Jumps: Inspiration and Reformulation
The notion of a quantum jump is almost synonymous with all things quantum....most certainly in the public mind. It comes to us as a resounding echo from the past, an idea traced back to the earliest days of the "old quantum theory." In this talk I follow the quantum jump from these early beginnings to its use as a building block of stochastic Shroedinger equations in modern quantum optics. Experiments with trapped ions and microwave photons in a box provide simple illustrations of the ideas.