Filtered strong quantum correlation of resonance fluorescence from a two-atom radiating system with interatomic coherence

Peng, Ze-an; Yang, Guoqing; Wu, Qinglin; Li, Gao‐xiang

doi:10.1103/physreva.99.033819

Cited by 8 publications

(4 citation statements)

References 44 publications

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“…3(a). Note that if, in addition to condition (17), the energy of each photon belongs to the allowed real transitions, the photon emission process is that described in the previous section, and the correlations between the photons are classical.…”

Section: Leapfrog Processesmentioning

confidence: 99%

“…In particular, the potential of virtual transitions, where photons are emitted in bundles, as a source of quantum correlations has been pointed out. As for interacting emitters, the quantum correlations which emerge for two weakly interacting emitters have been investigated in the specific configuration of a pump driving a single emitter, although the fluorescence spectrum is not substantially affected by the interaction in this configuration [17].…”

Section: Introductionmentioning

confidence: 99%

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Photon-photon correlations from a pair of strongly coupled two-level emitters

et al. 2021

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We investigate two-color photon correlations in the light emitted by strongly coupled two-level emitters. Spectral filtering allows us to manipulate the collected light statistics and we show that the resonances induced by dipole-dipole interactions give rise to specific correlations, where the timesymmetry of the correlations is broken. Based on the collective dressed states, our study encompasses both the case of real processes, where the photons are associated with specific resonances and classical correlations between each other, and virtual processes, where pairs of photons are emitted with non-classical correlations.

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Section: Leapfrog Processesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photon-photon correlations from a pair of strongly coupled two-level emitters

et al. 2021

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“…superradiant emission and dark states [2,5]. Minimal models of two and three quantum emitters have been studied extensively in the literature [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], and examples of emergent phenomenology include superradiance [21,22], generation of qubit entanglement [12,23,24] and spin and light squeezing [25][26][27], non-classical photon correlations [11,[17][18][19], emission of entangled photons [20], and potential for molecule localization with nanometer resolution [28,29]. The insights provided by these minimal theoretical models apply to a large variety of physical systems, including coupled quantum dots [30][31][32][33], trapped ions [21,34], Rydberg atoms [35][36][37], molecular systems [28,29], and superconducting qubits [22,…”

Section: Introductionmentioning

confidence: 99%

Two-photon resonance fluorescence of two interacting non-identical quantum emitters

Vivas-Viaña,

Muñoz

2021

Preprint

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We study a system of two interacting, non-indentical quantum emitters driven by a coherent field. We focus on the particular condition of two-photon resonance and obtain analytical expressions for the stationary density matrix of the system and observables of the fluorescent emission. Importantly, our expressions are valid for the general situation of non-identical emitters with different transition energies. Our results allow us to determine the regime of parameters in which coherent two-photon excitation, enabled by the coherent coupling between emitters, is dominant over competing, first-order processes. Using the formalism of quantum parameter estimation, we show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters, making two-photon excitation the optimal driving regime for the estimation of inter-emitter distance. This can be exploited for applications such as superresolution imaging of point-like sources.

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“…Resonance fluorescence of a multi-level system, strongly driven by a laser field, has been an active area of research both theoretically and experimentally (Peng et al, 2019;Konthasinghe et al, 2019;Schll et al, 2019;Yang and An, 2016;Ulrich et al, 2011). Moreover, most of the theoretical work to compute the resonance fluorescence in the context of open quantum system, where system S interacts with its environment E, has been developed in terms of a purely Markovian decay process.…”

Section: Introductionmentioning

confidence: 99%

Non-Markovian resonance fluorescence

Kumar¹

2020

Preprint

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We derive a general formula for the non-Markovian fluorescence spectrum of a multi-level system interacting with a bosonic environment. To this end, we apply linear-response theory to describe the dynamics of a detector monitoring the emission spectrum of a general multi-level system. The resultant emission lineshape function is directly related to the two-time correlation of system observables, which we derive using Nakajima-Zwanzig Generalized Master Equation without assuming a Markov approximation.

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Filtered strong quantum correlation of resonance fluorescence from a two-atom radiating system with interatomic coherence

Cited by 8 publications

References 44 publications

Photon-photon correlations from a pair of strongly coupled two-level emitters

Photon-photon correlations from a pair of strongly coupled two-level emitters

Two-photon resonance fluorescence of two interacting non-identical quantum emitters

Non-Markovian resonance fluorescence

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