Frequency-resolved Monte Carlo

Carreño, Juan Camilo López; Valle, Elena del; Laussy, Fabrice P.

doi:10.1038/s41598-018-24975-y

Cited by 20 publications

(17 citation statements)

References 64 publications

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“…[7,8] these quantities were chosen as β = 1 (to describe the maximum possible chiral coupling strength) and η = 0. Let us now consider the joint decay operator [9,42,43]…”

Section: Appendix A: Chiral Coupling Conditionsmentioning

confidence: 99%

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Asymmetric coupling between two quantum emitters

et al. 2020

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We study a prototypical model of two coupled two-level systems, where the competition between coherent and dissipative coupling gives rise to a rich phenomenology. In particular, we analyze the case of asymmetric coupling, as well as the limiting case of chiral (or one-way) coupling. We investigate various quantum optical properties of the system, including its steady-state populations, power spectrum, and second-order correlation functions, and outline the characteristic features which emerge in each quantity as one sweeps through the nontrivial landscape of effective complex couplings. Most importantly, we reveal instances of population trapping, unexpected spectral features, and strong emission correlations.

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“…[7,8] these quantities were chosen as β = 1 (to describe the maximum possible chiral coupling strength) and η = 0. Let us now consider the joint decay operator [9,42,43]…”

Section: Appendix A: Chiral Coupling Conditionsmentioning

confidence: 99%

“…As such, one may use cascaded theory to posit a well-defined criterion for chiral coupling [28,36,40]. Meanwhile, a number of papers have appeared recently successfully employing the cascaded formalism to uncover nontrivial photon correlations [41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric coupling between two quantum emitters

et al. 2020

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“…Considering the correspondence between the sensor method [64] and the cascaded formalism (see Ref. [66]), we can write |g| → √ Γγ σ . We substitute as well the spectrum convoluted with the detector, as explained in Eq.…”

Section: Coherence Time and Emission Ratementioning

confidence: 99%

Joint subnatural-linewidth and single-photon emission from resonance fluorescence

Carreño¹,

Casalengua²,

Laussy³

et al. 2018

Quantum Sci. Technol.

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Resonance fluorescence-the light emitted when exciting resonantly a two-level system-is a popular quantum source as it seems to inherit its spectral properties from the driving laser and its statistical properties from the two-level system, thus providing a subnatural-linewidth single-photon source. However, these two qualities do not actually coexist in resonance fluorescence, since an optical target detecting these antibunched photons will either be spectrally broad itself and not benefit from the spectrally narrow source, or match spectrally with the source but in this case the antibunching will be spoiled. We first explain this failure through a decomposition of the field-emission and how this gets affected by frequency resolution. We then show how to restore the sought joint subnatural linewidth and antibunched properties, by interfering the resonance fluorescence output with a coherent beam. We finally discuss how the signal that is eventually generated in this way features a new type of quantum correlations, with a plateau of antibunching which suppresses much more strongly close photon pairs. This introduces a new concept of perfect single-photon source.

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“…The bandwidth of the sensor is given by its decay rate Γ and is included as an extra term (Γ/2)L a ρ in the master equation (2). For quantities such as populations, which would vanish with g → 0, one should use instead the more complete but also heavier cascaded formalism, which we have shown is equivalent to the more lightweight sensor method as far as correlations are concerned [71]. The main point of this theoretical shortcut is that instead of considering the light emitted by a system, one can consider instead the filtered light and this is enough to describe the process of detection, as long as the detector would have the same spectral width as the filter.…”

Section: Theoretical Descriptionmentioning

confidence: 99%

Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source

Carreño

Casalengua

Laussy

et al. 2019

J. Phys. B: At. Mol. Opt. Phys.

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The elastic scattering peak of a resonantly driven two-level system has been argued to provide narrow-linewidth antibunched photons. Although independent measurements of spectral width on the one hand and antibunching on the other hand do seem to show that this is the case, a joint measurement reveals that only one or the other of these attributes can be realised in the direct emission. We discuss a scheme which interferes the emission with a laser to produce simultaneously single photons of subnatural linewidth. In particular, we consider the effect of dephasing and of the detuning between the driving laser and/or the detector with the emitter. We find that also in presence of dephasing, our scheme brings considerable improvement as compared to the standard scheme. arXiv:1806.08774v2 [quant-ph]

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Frequency-resolved Monte Carlo

Cited by 20 publications

References 64 publications

Asymmetric coupling between two quantum emitters

Asymmetric coupling between two quantum emitters

Joint subnatural-linewidth and single-photon emission from resonance fluorescence

Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source

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