Spectral properties of three-photon entangled states generated via three-photon parametric down-conversion in a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>χ</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mn>3</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:msup></mml:math>medium

Chekhova, Maria V.; Ivanova, Оlga А.; Berardi, V.; Garuccio, Augusto

doi:10.1103/physreva.72.023818

Cited by 25 publications

(33 citation statements)

References 18 publications

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“…The rate of direct generation of photon triplets R 3 from TOSPDC in the absence of photon losses has been calculated in previous work [16,24]. Findings in Refs.…”

Section: Triplet Generation Rate In Lossy Waveguidesmentioning

confidence: 98%

“…Third-order spontaneous parametric down conversion (TOSPDC), when one pump photon splits into three signal photons, can also generate entangled photon triplets. The temporal coherence properties of TOSPDC photon triplets are different from cascaded SPDC sources [16].…”

Section: Introductionmentioning

confidence: 94%

“…The temporal coherence of a triplet source can be characterized in three-photon coincidence detection experiments, which gives access to the third-order intensity correlation function [16] …”

Section: Temporal Coherence Of Tospdc Sourcesmentioning

confidence: 99%

“…(16). The effective nonlinearity is calculated, in turn, using the total overlap as an input parameter in Eq.…”

Section: B Overlap Calculation With Nonlinear Susceptibility Tensor mentioning

confidence: 99%

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Efficient photon triplet generation in integrated nanophotonic waveguides

et al. 2016

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Generation of entangled photons in nonlinear media constitutes a basic building block of modern photonic quantum technology. Current optical materials are severely limited in their ability to produce three or more entangled photons in a single event due to weak nonlinearities and challenges achieving phase-matching. We use integrated nanophotonics to enhance nonlinear interactions and develop protocols to design multimode waveguides that enable sustained phase-matching for third-order spontaneous parametric down-conversion (TOSPDC). We predict a generation efficiency of 0.13 triplets/s/mW of pump power in TiO₂-based integrated waveguides, an order of magnitude higher than previous theoretical and experimental demonstrations. We experimentally verify our device design methods in TiO₂ waveguides using third-harmonic generation (THG), the reverse process of TOSPDC that is subject to the same phase-matching constraints. We finally discuss the effect of finite detector bandwidth and photon losses on the energy-time coherence properties of the expected TOSPDC source.

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“…The rate of direct generation of photon triplets R 3 from TOSPDC in the absence of photon losses has been calculated in previous work [16,24]. Findings in Refs.…”

Section: Triplet Generation Rate In Lossy Waveguidesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 94%

Section: Temporal Coherence Of Tospdc Sourcesmentioning

confidence: 99%

“…(16). The effective nonlinearity is calculated, in turn, using the total overlap as an input parameter in Eq.…”

Section: B Overlap Calculation With Nonlinear Susceptibility Tensor mentioning

confidence: 99%

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Efficient photon triplet generation in integrated nanophotonic waveguides

et al. 2016

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“…We note that there are other ways to produce such a W state in the literature. One way is the cascade configuration in which a pump photon is down converted into three daughter photons [42].…”

mentioning

confidence: 99%

Tripartite entanglement generation via four-wave mixings: narrowband triphoton W state

Wen

2010

J. Opt. Soc. Am. B

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1 This is the Pre-Published VersionWe propose a method to generate a narrowband triphoton W state entangled in time (or energy) via two four-wave mixing processes in cold atomic gas media. The calculation of such a triphoton W state is performed with second-order perturbation theory. To characterize the optical properties of the state, we analyze the two∼photon and three-photon temporal correlations in the photon coincidence counting measurement. Considering the role of determining the time coherence of triphotons between the nonlinear susceptibilities and phase matchings, we concentrate on two regimes, damped Rabi oscillation and group delay, to look at the temporal correlations. To further enhance the nonlinear interactions, it may be promising to consider cold atoms confined within hollow fibers or loaded into a high-Q cavity.

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Improving spatial resolution in quantum imaging beyond the Rayleigh diffraction limit using multiphoton W entangled states

Wen

2010

Physics Letters A

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Spectral properties of three-photon entangled states generated via three-photon parametric down-conversion in aχ(3)medium

Cited by 25 publications

References 18 publications

Efficient photon triplet generation in integrated nanophotonic waveguides

Efficient photon triplet generation in integrated nanophotonic waveguides

Tripartite entanglement generation via four-wave mixings: narrowband triphoton W state

Improving spatial resolution in quantum imaging beyond the Rayleigh diffraction limit using multiphoton W entangled states

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