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.

Cilluffo D., Lorenzo S., Palma G., Ciccarello F. (2019). Quantum jump statistics with a shifted jump operator in a chiral waveguide. JOURNAL OF STATISTICAL MECHANICS: THEORY AND EXPERIMENT, 2019(10), 104004 [10.1088/1742-5468/ab371c].

Quantum jump statistics with a shifted jump operator in a chiral waveguide

Cilluffo D.;Lorenzo S.;Palma G.;Ciccarello F.
2019-01-01

Abstract

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.
https://iopscience.iop.org/article/10.1088/1742-5468/ab371c/pdf
Cilluffo D., Lorenzo S., Palma G., Ciccarello F. (2019). Quantum jump statistics with a shifted jump operator in a chiral waveguide. JOURNAL OF STATISTICAL MECHANICS: THEORY AND EXPERIMENT, 2019(10), 104004 [10.1088/1742-5468/ab371c].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/394672
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