Induced magnetic monopole from trapped Λ-type atom
Institute of Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, P.R. China
Corresponding author: a email@example.com
Revised: 4 May 2005
Published online: 17 August 2005
We investigate the spatial motion of the trapped atom with the electromagnetically induced transparency (EIT) configuration where the two Rabi transitions are coupled to two classical light fields respectively with the same detuning. When the internal degrees of freedom can be decoupled adiabatically from the spatial motion of the center of mass via the Born-Oppenheimer approximation, it is demonstrated that the lights of certain profile can provide the atom with an effective field of magnetic monopole, which is the so-called induced gauge field relevant to the Berry's phase. Such an artificial magnetic monopole structure manifests itself in the characterizing energy spectrum.
PACS: 03.65.Vf – Phases: geometric; dynamic or topological / 42.50.Vk – Mechanical effects of light on atoms, molecules, electrons, and ions / 14.80.Hv – Magnetic monopoles
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005