Santa Claus and Quantum Mechanics

I am the quantum mechanical Santa. I am both here and not here, seen and not seen, observed and in multiple states. Before this turns into a cross product of Simon Singh’s books, a Charles Stross novel and a Springer-Verlag graduate text in mathematics, I offer up some backstory.

Thirty years ago I was asked to be the office Santa for the kids-included holiday party. My extrusion into the Santa suit was the conjunction of multiple not-states of being: I was not skinny, not yet a parent, not likely to be recognized by the office’s children, and not naughty (oh but do read…