The prospect of detecting single-photon force effects in cavity   optomechanics
  Cavity optomechanical systems are approaching a strong-coupling regime where the coherent dynamics of nanomechanical resonators can be manipulated and controlled by optical fields at the single photon level. Here we propose an interferometric scheme able to detect optomechanical coherent interaction at the single-photon level which is experimentally feasible with state-of-the-art devices. 
H. X. Tang and D. Vitali
quant-ph cond-mat.mes-hall physics.optics