Journal of Optics B Quantum and Semiclassical Optics
Atom coherence propagation in a magnetic atomic waveguide
Xia-Ji Liu, D J Li, Huaqing Huang, Shijie Li, Yufan Wang
Abstract
The quantum motion of atoms in a magnetic waveguide is discussed on the basis of our magnetic atom guidance model. The coherence evolution of atoms initially in the Bose-Einstein condensate (BEC) state during propagation along the waveguide is investigated in detail and the first-order and second-order atomic correlation functions are obtained. It is shown that if the frequency ω 0 of the BEC trap is equal to the frequency ω of the potential in the magnetic waveguide, the atoms will remain in the initial coherent state. If ω 0 and ω are mismatched, the initial coherent properties will be weakened.