Resonance fluorescence, consisting of light emission from an atom driven by a classical oscillating field, is well-known to yield a sub-Poissonian photon counting statistics. This occurs when only emitted light is detected, which corresponds to a master equation (ME) unraveling in terms of the canonical jump operator describing spontaneous decay. Formally, an alternative ME unraveling is possible in terms of a shifted jump operator. We show that this shift can result in sub-Poissonian, Poissonian or super-Poissonian quantum jump statistics. This is shown in terms of the Mandel Q parameter in the limit of long counting times, which is computed through large deviation theory. We present a waveguide-QED setup, comprising a chiral waveguide coupled to a driven atom, where photon counting is described by the considered class of shifted jump operators.
|Number of pages||11|
|Journal||Journal of Statistical Mechanics: Theory and Experiment|
|Publication status||Published - 2019|
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Statistics and Probability
- Statistics, Probability and Uncertainty
Cilluffo, D., Palma, G. M., Ciccarello, F., Lorenzo, S., Ciccarello, F., Massimo Palma, & Massimo Palma (2019). Quantum jump statistics with a shifted jump operator in a chiral waveguide. Journal of Statistical Mechanics: Theory and Experiment, 2019, 104004-.