In reading about vibrations in fields and wave functions and wave packets, some words that start with ‘e’ occurred a lot: eigenvalue, eigenvector, eigenfunction, eigenvalue equation, eigenequation . I needed to refresh my understanding of the mathematical models for macroscopic and microscopic systems . Everyday we are surrounded by things that vibrate when excited. Some… Continue reading Eigen what?
Over the weekend, I started reading Sean Carroll’s The Particle at the End of the Universe. Well written . At times his colloquial description of a concept prompted me to: (1) wonder if he was referring to a particular technical phenomenon; and (2) explore the specialized, technical background of that concept. In either case, quite… Continue reading Vocabulary at the end of the verse