Electronic and photonic counting statistics as probes of non-equilibrium   quantum dynamics
  When a mesoscopic conductor is coupled to a high-quality electromagnetic cavity the flow of charges and the flux of photons leaking out of the cavity can both depend strongly on the coupled quantum dynamics of the system. Using a voltage-biased Josephson junction as a model system, we demonstrate that there is a simple connection between the full counting statistics of the charges and the photons in the long time limit. We then reveal the intimate relation between the counting statistics and the nonlinear dynamics of the system, uncovering novel regimes of coherent charge and photon transport associated with bifurcations in the classical dynamics of the system. 
Bj\"orn Kubala, Joachim Ankerhold, A. D. Armour
cond-mat.mes-hall cond-mat.supr-con quant-ph