Implementation of bright six-partite entanglement by coupled intracavity sum frequency generation

Wang, Junfeng; Liu, Le; Liu, Yuzhu; Zhang, Yanan; Wu, Hongyan; Gong, Chengxuan; Zhang, Ruofan; Zhang, Houyuan; Fan, Jing-yu

doi:10.1088/1612-202x/aa9fb5

Cited by 3 publications

(3 citation statements)

References 42 publications

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“…Second harmonic generation (SHG) and coupled SHG can produce bright two-color CV entanglement with [30] or without a cavity [31][32][33][34][35][36]. Compared with SHG, sum frequency generation (SFG) and coupled SFG can also produce bright two-color [37,38] and three-color [39,40] CV multipartite entanglement. Intracavity and single pass cascaded third-harmonic generation [41,42] and fourth-harmonic generation [43,44] can produce three-color CV entanglement beams.…”

Section: Bright Four-color Quadripartite Entanglement From Quasi-phas...mentioning

confidence: 99%

Bright four-color quadripartite entanglement from quasi-phase-matching cascaded nonlinear optical frequency conversion

Wang

Liu

et al. 2019

Laser Phys. Lett.

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We propose an experimentally feasible scheme to produce bright four-color continuousvariable entanglement by intracavity quasi-phase-matching cascaded nonlinear optical frequency conversion in only one optical superlattice. The second, third and fourth harmonics can be generated by frequency doubling of the input fundamental field at frequency ω, the sum frequency of fundamental and second harmonic fields, and frequency doubling of the second harmonic field, respectively. The entanglement properties influenced by system parameters are theoretically discussed according to the sufficient inseparability criterion proposed by van Loock and Furusawa. Such compact multipartite continuous-variable entanglement has potential applications in quantum communication and computation networks.

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Section: Bright Four-color Quadripartite Entanglement From Quasi-phas...mentioning

confidence: 99%

Bright four-color quadripartite entanglement from quasi-phase-matching cascaded nonlinear optical frequency conversion

Wang

Liu

et al. 2019

Laser Phys. Lett.

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“… 14 . Multipartite quantum entanglement can be generated by coupled intracavity nondegenerate parametric down-conversion 15 , 16 and cascaded nonlinear process 17 , 18 . Quantum steering is different from quantum entanglement.…”

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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“…Five-partite entanglement production was proposed by a cascaded four-wave mixing process [28] or coupled secondorder nonlinear interaction in two optical frequency combs [29]. Six-partite entanglement can be generated by coupled intracavity non-degenerate parametric down-conversion [30] or a coupled intracavity sum-frequency generation process [31]. Cascaded optical parametric amplifiers with low pump parameter can generate bandwidth multipartite entanglement fields [32].…”

Section: Introductionmentioning

confidence: 99%

Five-partite continuous-variable entanglement generated by cascaded nonlinear processes in only one optical superlattice

Yu¹,

Chu²,

Fan³

et al. 2018

Laser Phys. Lett.

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We theoretically investigate the generation of five-partite continuous-variable (CV) entanglement through injection-seeded non-degenerate optical parametric amplification cascaded two sum-frequency processes in only one optical superlattice without optical cavities. The idle can be generated by optical parametric amplification of pump and signal. Then, one beam will be generated by the cascaded sum-frequency process of pump and idle, and another beam will be produced by the cascaded sum-frequency process of pump and signal in the same optical superlattice. The phase-mismatching in the cascaded nonlinear processes can be compensated by three reciprocals of the optical superlattice by a quasi-phase-matching technique. The conversion dynamics among the cascaded nonlinear processes is analyzed by using a quantum stochastic method. The five-partite entanglement among pump, signal, idle, and two sum-frequency beams are discussed by applying a sufficient inseparability criteria for the five-partite CV entanglement proposed by Van Loock and Furusawa. This scheme of five-partite entanglement generation with different frequencies has potential applications in quantum communication and computation networks.

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Implementation of bright six-partite entanglement by coupled intracavity sum frequency generation

Cited by 3 publications

References 42 publications

Bright four-color quadripartite entanglement from quasi-phase-matching cascaded nonlinear optical frequency conversion

Bright four-color quadripartite entanglement from quasi-phase-matching cascaded nonlinear optical frequency conversion

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

Five-partite continuous-variable entanglement generated by cascaded nonlinear processes in only one optical superlattice

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