Generation of continuous-variable tripartite entanglement using cascaded nonlinearities

Guo, Jin‐Liang; Zou, Hongxin; Zhai, Zhongsheng; Zhang, Junxiang; Gao, Jiangrui

doi:10.1103/physreva.71.034305

Cited by 83 publications

(56 citation statements)

References 23 publications

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“…Two-color bipartite entanglement has been realized via parametric oscillation [3,4] or type I second harmonic generation (SHG) [5][6][7]. Multicolored tripartite entangled states from cascaded nonlinear processes have been investigated by several groups [8][9][10][11][12]. Simpler schemes, where tripartite entanglement exists in the three output fields directly from above threshold optical parametric oscillator (OPO) [13] or type II SHG [14,15], have been predicted and experimentally confirmed [16].…”

Section: Introductionmentioning

confidence: 95%

Quadripartite entanglement from coupled type I second harmonic generation

Guo

Zhai

2015

Annalen der Physik

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We present a feasible protocol of continuous variable quadripartite entanglement from the coupled type I second harmonic generation (SHG) below threshold. According to the sufficient inseparability criteria for multipartite continuous variable (CV) entanglement, the four output fields are proved to be multicolored entangled beams in separable locations with four-mode amplitude quadratures correlation and relative phase quadratures correlation. It shows that the coupled system can produce a compact tunable multimode entangled source that can be applied into the quantum communication.

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Section: Introductionmentioning

confidence: 95%

Quadripartite entanglement from coupled type I second harmonic generation

Guo

Zhai

2015

Annalen der Physik

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“…Recently, Cassemiro and Villar demonstrated that scalable multipartite entanglement among light fields may be generated by optical parametric oscillators [8]. Moreover, some schemes of generating tripartite entanglement with OPOs have been also proposed [22][23][24], and a most recent research showed that tripartite entanglement also can be generated in cavity -QED system [25].…”

Section: Introductionmentioning

confidence: 97%

Generation of Genuine Tripartite Macroscopic Entanglement in Y-type System

Zhao

et al. 2010

Int J Theor Phys

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“…Using this criterion, a theoretical scheme for generating three-mode entangled states based on cascaded nonlinear processes was presented [34]. Zhai et al demonstrated that the optical cavity with second-order harmonic generation can produce three-mode entangled light beams when it operates below threshold [40].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, with the development of multi-node quantum network technology, much attention has been paid on how to generate, detect and employ multipartite CV entanglement for quantum communication in various of linear optics and nonlinear optics systems [29][30][31][32][33][34][35][36][37][38][39][40][41][42]. For example, P. van Loock and Samuel L. Braunstein have investigated a truly multipartite entangled state generated by one single mode squeezed state distributed among N parties using linear optics [29].…”

Section: Introductionmentioning

confidence: 99%