Einstein-Podolsky-Rosen steering in spontaneous parametric down-conversion cascaded with a sum-frequency generation

Liu, Y.; Liang, S. L.; Jin, Guangri; Yu, Y. B.; Chen, A. X.

doi:10.1103/physreva.102.052214

Cited by 11 publications

(12 citation statements)

References 57 publications

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“…Liang et al [34] proposed to generate quadripartite EPR steering by optical parametric oscillation cascaded with a sum-frequency process. Liu et al [35] proposed a scheme to generate tripartite EPR steering by spontaneous parametric down-conversion cascaded with a sum-frequency generation. Recently, Hao et al [36] observed for the first time the non-monogamous sharing relationship of tripartite EPR steering.…”

Section: Introductionmentioning

confidence: 99%

One to many one-way control in quadripartite asymmetric Einstein-Podolsky-Rosen steering

Xiao,

Cheng,

et al. 2024

New J. Phys.

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Einstein-Podolsky-Rosen (EPR) steering is different from quantum entanglement because of its unique asymmetry. Multipartite asymmetric EPR steering can break through one-to-one monogamy steering and achieve one to many one-way steering. That is to say, the state of one part can steer the other rest parts simultaneously, while the other parts cannot steer this part. Here, a scheme is proposed to generate one to many one-way steering by optical parametric amplification cascaded with a sum-frequency generation process. One to many non-monogamy EPR steering, such as one to two and one to three one-way steering are demonstrated based on the criterion for asymmetric EPR steering. It is also find that different kinds of asymmetric EPR steering can be obtained by choosing different nonlinear parameters. This non-monogamous one to many quantum control has potential application in constructing quantum networks and realizing one-way quantum computing.

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Section: Introductionmentioning

confidence: 99%

One to many one-way control in quadripartite asymmetric Einstein-Podolsky-Rosen steering

Xiao,

Cheng,

et al. 2024

New J. Phys.

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“…[49][50][51][52][53] Olsen et al investigated tripartite entanglement generated through coupled cavity parametric down-conversion and sum-frequency generation. [54] Liu et al [55] examined genuine tripartite EPR steering in the cascaded nonlinear process of spontaneous parametric downconversion in an optical cavity with a wide range of nonlinear parameters. They analyzed the threshold characteristics of the cascaded nonlinear process and found that the system is stable below and without a threshold.…”

Section: Introductionmentioning

confidence: 99%

Bright Tripartite Quantum Steering Generated by Above‐Threshold Optical Parametric Oscillation

Ma,

Cheng,

Zhang

et al. 2024

Adv Quantum Tech

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Einstein–Podolsky–Rosen (EPR) steering is the key resources in quantum information processing. EPR steering light sources typically obtained through spontaneous parametric down conversion below a threshold are relatively weak. Strong bright EPR steering light source can be obtained by operating the resonant cavity above the threshold. Here, the quantum steering correlations of the system above the threshold are analyzed using numerical simulations based on the quantum random trajectory method in Wigner representation. By employing the genuine multipartite EPR steering criterion, it is demonstrated that genuine bright tripartite EPR steering can be generated above the threshold, and investigate the influences of the nonlinear parameters on the genuine tripartite EPR steering. The scheme of bright EPR steering light source generated by cascaded nonlinear process can be used as a quantum repeater in quantum communication.

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“… 19 . Genuine tripartite EPR steering in cascaded nonlinear process of quasi-phase-matching fourth-harmonic generation 20 and the genuine tripartite EPR steering in spontaneous parametric down-conversion cascaded with a sum-frequency generation 21 were also investigated. Liang et al .…”

Section: Introductionmentioning

confidence: 99%

The generation of genuine quadripartite Einstein–Podolsky–Rosen steering in an optical superlattice

Shen,

Chen,

Liang

et al. 2023

Sci Rep

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Einstein–Podolsky–Rosen (EPR) steering is a quantum effect based on quantum entanglement and it is the key resource for building quantum networks because of its useful properties. Based on the criterion for genuine multipartite EPR steering, the genuine quadripartite EPR steering is confirmed and it can be generated by a spontaneous parametric down-conversion cascaded process with two sum-frequency generations in an optical superlattice. This occurs either below the oscillation threshold and without oscillation threshold. The influence of the parameters of cascaded nonlinear process on the quadripartite EPR steering among signal, idler, and two sum-frequency beams are also discussed. Choosing appropriate nonlinear parameters can achieve good quadripartite quantum steering. This scheme of the generation of genuine quadripartite EPR steering has potential applications in quantum communication and computing.

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Einstein-Podolsky-Rosen steering in spontaneous parametric down-conversion cascaded with a sum-frequency generation

Cited by 11 publications

References 57 publications

One to many one-way control in quadripartite asymmetric Einstein-Podolsky-Rosen steering

One to many one-way control in quadripartite asymmetric Einstein-Podolsky-Rosen steering

Bright Tripartite Quantum Steering Generated by Above‐Threshold Optical Parametric Oscillation

The generation of genuine quadripartite Einstein–Podolsky–Rosen steering in an optical superlattice

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