Experimental proposal for the generation of entangled photon triplets by third-order spontaneous parametric downconversion in optical fibers

Corona, María; Garay-Palmett, Karina; U’Ren, Alfred B.

doi:10.1364/ol.36.000190

Cited by 76 publications

(82 citation statements)

References 14 publications

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“…Currently, a lot of efforts are being invested into the creation of controllable entangled quantum states of three or more particles in the laboratory [37,38]. The conventional way of creating double or triple states of entangled photons is by nonlinear down-conversion in a crystal [39][40][41][42][44][45][46], while it is only recently that direct production of a triple photon state was successful [43]. With the current study, we propose the three-photon Compton effect as an alternative source of entangled triplets of photons.…”

Section: Multipartite Entanglementmentioning

confidence: 99%

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Theoretical study of the Compton effect with correlated three-photon emission: From the differential cross section to high-energy triple-photon entanglement

Lötstedt

2013

Phys. Rev. A

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The three-photon Compton effect is studied. An incoming photon undergoes triple scattering off a free electron, which leads to the emission of three entangled photons. We investigate the properties of both the total cross section, assuming a low-energy cutoff for the detected photons, and the differential cross section. Particular emphasis is laid on evaluating polarization-resolved cross sections. The entanglement of the final three-photon state is analyzed.

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Section: Multipartite Entanglementmentioning

confidence: 99%

“…The experimental production of multi-photon entangled states is currently at the focus of intense research efforts [37][38][39][40][41][42][43][44][45][46]. One can say that the three-photon Compton process is the most basic QED process that is able to produce a three-photon entangled final state.…”

mentioning

confidence: 99%

Theoretical study of the Compton effect with correlated three-photon emission: From the differential cross section to high-energy triple-photon entanglement

Lötstedt

2013

Phys. Rev. A

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“…In particular, threephotons states can be obtained experimentally using Spontaneous Parametric downconversion (SPDC) [23][24][25][26][27][28], and third-order optical non-linearities in assembled [29][30][31] systems. In this sense, although several groups have managed to prepare and control specific quantum states [32,33], the preparation of arbitrary quantum states of light is still an experimental challenge.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a three-photon state in a nonlinear cavity–quantum dot system

Carreño¹,

Vinck-Posada²

2014

Phys. Scr.

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Abstract. We study theoretically the properties of a three-photon state prepared inside a semiconductor cavity, due to the interaction between a quantum dot and an electromagnetic field, and two consecutive spontaneous parametric downconversion (SPDC) processes. Thus, we consider a scheme involving three modes of the electromagnetic field, whose frequencies are given by the SPDC processes: ω 0 → ω 1 + ω 2 , and ω 2 → ω 1 + ω 1 . Furthermore, we study the low excitation regime, in which a three-photon state is accessible within the system's dynamics.

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“…1(b). Among the alternatives for the direct generation of photon triplets are χ ð3Þ interaction in optical fibers [15], sum-frequency generation of energy-time entangled photon pairs [16], and cascaded spontaneous parametric down-conversion (CSPDC) [17]. We employ a newly designed CSPDC source that produces photon triplets at a high rate in a state that approximates the triplet state in Eq.…”

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confidence: 99%

Photonic Hat Trick

Sewell

2017

Physics

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Multiparticle quantum interference is critical for our understanding and exploitation of quantum information, and for fundamental tests of quantum mechanics. A remarkable example of multi-partite correlations is exhibited by the Greenberger-Horne-Zeilinger (GHZ) state. In a GHZ state, three particles are correlated while no pairwise correlation is found. The manifestation of these strong correlations in an interferometric setting has been studied theoretically since 1990 but no three-photon GHZ interferometer has been realized experimentally. Here we demonstrate three-photon interference that does not originate from two-photon or single photon interference. We observe phase-dependent variation of three-photon coincidences with ð92.7 AE 4.6Þ% visibility in a generalized Franson interferometer using energy-time entangled photon triplets. The demonstration of these strong correlations in an interferometric setting provides new avenues for multiphoton interferometry, fundamental tests of quantum mechanics, and quantum information applications in higher dimensions. DOI: 10.1103/PhysRevLett.118.153602 In 1989, Franson [1] considered a light source that emits two photons simultaneously but at an unknown absolute time. These photon pairs, when sent through identical, but independent, unbalanced interferometers, display interference in the twofold coincidence rate, but not in the independent single detection rates [2]. This is the simplest manifestation of what we call genuine interference: certain multipartite entangled quantum states display correlations in the highest order with interference that cannot be explained by lowerorder interference [3][4][5]. The Franson interferometer is representative of a class of two-particle interferometers that convert continuous-variable entanglement into two-valued observables via the two output ports of an interferometer [6]. Accordingly, with three independent interferometers, three continuously entangled photons can show genuine interference as well. This is known as the GHZ interferometer [4,[7][8][9] and is shown schematically in Fig. 1(a). However, multiphoton entanglement experiments are considered less challenging when using polarization [10] and only Mermin's "three-spin gadget" [11] has been realized [12] rather than the three-photon GHZ interferometer. Such an interferometer differs from previously realized NOON-type interferometers, where the photons are manipulated together in a single interferometer to show superresolution effects with, in general, nonzero lowerorder interference [3,9,13,14].Energy-time entangled photon triplets can be described by a continuous superposition of triplet creation times [9],We let each photon individually propagate through an unbalanced interferometer with a time difference τ ¼3.7ns between the short and long arm, as shown in Fig. 1(a). The creation operators in Eq.(1) can be expressed in terms of the detection modes A n and B n (n ¼ 1, 2, 3) asThe detection modes correspond to the complementary interferometer output modes and thus par...

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Experimental proposal for the generation of entangled photon triplets by third-order spontaneous parametric downconversion in optical fibers

Cited by 76 publications

References 14 publications

Theoretical study of the Compton effect with correlated three-photon emission: From the differential cross section to high-energy triple-photon entanglement

Theoretical study of the Compton effect with correlated three-photon emission: From the differential cross section to high-energy triple-photon entanglement

Preparation of a three-photon state in a nonlinear cavity–quantum dot system

Photonic Hat Trick

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