Continuous Observation of Interference Fringes from Bose Condensates
arXiv:atom-ph/9606004 · doi:10.1103/PhysRevA.54.R3714
Abstract
We use continuous measurement theory to describe the evolution of two Bose condensates in an interference experiment. It is shown how the system evolves in a single run of the experiment into a state with a fixed relative phase, while the total gauge symmetry remains unbroken. Thus, an interference pattern is exhibited without violating atom number conservation.
4 pages, Postscript