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EnglishResonance 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.
| Data di pubblicazione: | 2019 |
| Titolo: | Quantum jump statistics with a shifted jump operator in a chiral waveguide |
| Autori: | CICCARELLO, Francesco (Corresponding) |
| Citazione: | 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. |
| Rivista: | |
| Digital Object Identifier (DOI): | 10.1088/1742-5468/ab371c |
| 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. |
| URL: | https://iopscience.iop.org/article/10.1088/1742-5468/ab371c/pdf |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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http://hdl.handle.net/10447/394672
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