利用克尔效应和自辅助机制完整分析三个自由度的超纠缠贝尔态

IF 1.2 4区物理与天体物理 Q4 OPTICS

Laser Physics Pub Date : 2024-06-07 DOI:10.1088/1555-6611/ad4eb9

Zhi Zeng

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引用次数: 0

摘要

我们提出了一种高效的方案，利用弱交叉克尔非线性、线性光学元件和单光子探测器，对具有偏振和两个纵动量自由度（DOF）的光子系统进行完整的超纠缠贝尔态分析（HBSA）。在分辨三个 DOF 中的 64 个超纠缠贝尔态的过程中，嵌入了自辅助机制，这使得我们的方案简单可行。此外，我们还讨论了这一完整的 HBSA 方案在基于三个 DOF 的光子超纠缠的大容量量子通信协议中的应用。

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Complete analysis of hyperentangled Bell state in three degrees of freedom using Kerr effect and self-assisted mechanism

We present an efficient scheme for the complete hyperentangled Bell state analysis (HBSA) of photon system with polarization and two longitudinal momentum degrees of freedom (DOFs), resorting to weak cross-Kerr nonlinearity, linear optical elements and single photon detectors. In the process of distinguishing the 64 hyperentangled Bell states in three DOFs, the self-assisted mechanism is embedded, which makes our scheme simple and realizable. Moreover, we have discussed the applications of this complete HBSA scheme for high-capacity quantum communication protocols that are based on photonic hyperentanglement in three DOFs.

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来源期刊

Laser Physics 物理-光学

CiteScore

2.60

自引率

8.30%

发文量

127

审稿时长

2.2 months

期刊介绍： Laser Physics offers a comprehensive view of theoretical and experimental laser research and applications. Articles cover every aspect of modern laser physics and quantum electronics, emphasizing physical effects in various media (solid, gaseous, liquid) leading to the generation of laser radiation; peculiarities of propagation of laser radiation; problems involving impact of laser radiation on various substances and the emerging physical effects, including coherent ones; the applied use of lasers and laser spectroscopy; the processing and storage of information; and more. The full list of subject areas covered is as follows: -physics of lasers- fibre optics and fibre lasers- quantum optics and quantum information science- ultrafast optics and strong-field physics- nonlinear optics- physics of cold trapped atoms- laser methods in chemistry, biology, medicine and ecology- laser spectroscopy- novel laser materials and lasers- optics of nanomaterials- interaction of laser radiation with matter- laser interaction with solids- photonics