Effect of initial squeezing on tripartite continuous-variable entanglement of dynamical processes

被引：0

作者：

Pradana, Andri ^{[1
]}

Chew, Lock Yue ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, 21 Nanyang Link, Singapore 637371, Singapore

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2022年 / 20卷 / 04期

关键词：

Tripartite CV entanglement; quantum squeezing; initial squeezing; entanglement enhancement; QUANTUM; DEPENDENCE; DIAMOND; CENTERS; STATES; NOISE;

D O I：

10.1142/S0219749922500083

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this paper, we investigate the effect of initial squeezing on tripartite continuous-variable (CV) Hamiltonians based on real physical systems. The Hamiltonians are based on the three-mode magnons excited by an external field, the one-dimensional interconnected tripartite spring-like system, and two spin ensembles coupled to a cavity resonator in the nondispersive regime in the CV limit. We find that for the three-mode magnons and the spring-like system, implementation of initial squeezing invariably enhances the two-way and three-way entanglement, while for the spin-resonator system, it depends on the alignment of the spin ensembles relative to the resonator field.

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页数：24

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