Recovering Coherence via Conditional Measurements
  We show that conditional measurements on atoms following their interaction with a resonant cavity field mode can be used to effectively counter the decoherence of Fock-state superpositions due to cavity leakage. 
M. Fortunato (1), G. Harel (2), and G. Kurizki (2) ((1) INFM and   Dipartimento di Matematica e Fisica, Universita' di Camer...