初始压缩对动力学过程三元连续变量纠缠的影响

IF 0.7 4区物理与天体物理 Q3 COMPUTER SCIENCE, THEORY & METHODS

International Journal of Quantum Information Pub Date : 2022-03-30 DOI:10.1142/s0219749922500083

Andri Pradana, Lock Yue Chew

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引用次数: 0

摘要

本文基于真实物理系统，研究了初始压缩对三元连续变量哈密顿量的影响。哈密顿量是基于由外部场激发的三模磁振子、一维互连的三重类弹簧系统以及在CV极限的非分散区域中耦合到腔谐振器的两个自旋系综。我们发现，对于三模磁振子和类弹簧系统，初始压缩的实现总是增强双向和三向纠缠，而对于自旋谐振器系统，这取决于自旋系综相对于谐振场的对准。

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

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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来源期刊

International Journal of Quantum Information 物理-计算机：理论方法

CiteScore

2.20

自引率

8.30%

发文量

审稿时长

10 months

期刊介绍： The International Journal of Quantum Information (IJQI) provides a forum for the interdisciplinary field of Quantum Information Science. In particular, we welcome contributions in these areas of experimental and theoretical research: Quantum Cryptography Quantum Computation Quantum Communication Fundamentals of Quantum Mechanics Authors are welcome to submit quality research and review papers as well as short correspondences in both theoretical and experimental areas. Submitted articles will be refereed prior to acceptance for publication in the Journal.