Formation of Ramsey fringes in double Bose-Einstein condensates
A Eschmann, R J Ballagh, B M Caradoc-Davies
Numerical simulations of Ramsey fringe formation in double Bose condensates are carried out in two spatial dimensions. The effects of mean-field nonlinearity and diffusion in the condensates give rise to new features in the Ramsey fringes, namely spatial variation and an asymmetry between positive and negative field detunings. We introduce the concept of an effective detuning, which for moderate interpulse times provides a qualitative understanding of the new features.
arXiv:cond-mat/9903013•Journal of Optics B Quantum and Semiclassical Optics•Aug 1, 1999•6 citations