Photon correlation vs interference of single-atom fluorescence in a   half-cavity
  Photon correlations are investigated for a single laser-excited ion trapped in front of a mirror. Varying the relative distance between the ion and the mirror, photon correlation statistics can be tuned smoothly from an antibunching minimum to a bunching-like maximum. Our analysis concerns the non-Markovian regime of the ion-mirror interaction and reveals the field establishment in a half-cavity interferometer. 
Francois Dubin, Daniel Rotter, Manas Mukherjee, Carlos Russo, Juergen   Eschner, and Rainer Blatt