Engineering atomic entanglement in a real one-atom micromaser
Animesh Datta, A. S. Majumdar, N. Nayak · CERN Document Server (European Organization for Nuclear Research) · 2003
We consider a realistic model for the one-atom micromaser consisting of a cavity maintained in a steady state by the streaming of two-level Rydberg atoms passing one at a time through it. We show that it is possible to monitor the robust entanglement generated between two successive experimental atoms passing through the cavity by the control decoherence parameters. We calculate the entanglement of formation of the two atoms and find that this is in direct correspondence with the difference of the Shannon entropy of the cavity photons before and after the passage of the atoms. It is thus possible to quantitatively demonstrate information transfer between the cavity and the atoms through this set-up.