镜-光-原子在环形光学机械腔中的纠缠

IF 2.2 3区物理与天体物理 Q1 PHYSICS, MATHEMATICAL

Quantum Information Processing Pub Date : 2023-09-05 DOI:10.1007/s11128-023-04082-2

Oumayma El Bir, Morad El Baz

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引用次数: 0

摘要

本文阐述了原子系综被限制在由一个固定镜和两个可动镜组成的环形光力学腔内的原子-光力学系统的实现。动力学分析和方程的线性化使我们能够推导出多模协方差矩阵。在实际实验条件下，采用对数负性数值模拟了稳态二部和三部连续变量纠缠，并分析了多模系统中的共享纠缠。原子介质的引入导致了更广泛的纠缠平台，表明其对温度诱导的退相干效应的鲁棒性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mirrors–light–atoms entanglement in ring optomechanical cavity

The present paper illustrates the realization of an atom-optomechanical system where an atomic ensemble is confined in a ring optomechanical cavity consisting of a fixed mirror and two movable ones. An analysis of the dynamics and the linearization of the equations allows us to derive the multimode covariance matrix. Under realistic experimental conditions, we numerically simulate the steady-state bipartite and tripartite continuous variable entanglement using the logarithmic negativity and analyze the shared entanglement in the multimode system. The introduction of the atomic medium is responsible for a more expansive plateau of entanglement indicating its robustness against temperature-induced decoherence effects.

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来源期刊

Quantum Information Processing 物理-物理：数学物理

CiteScore

4.10

自引率

20.00%

发文量

337

审稿时长

4.5 months

期刊介绍： Quantum Information Processing is a high-impact, international journal publishing cutting-edge experimental and theoretical research in all areas of Quantum Information Science. Topics of interest include quantum cryptography and communications, entanglement and discord, quantum algorithms, quantum error correction and fault tolerance, quantum computer science, quantum imaging and sensing, and experimental platforms for quantum information. Quantum Information Processing supports and inspires research by providing a comprehensive peer review process, and broadcasting high quality results in a range of formats. These include original papers, letters, broadly focused perspectives, comprehensive review articles, book reviews, and special topical issues. The journal is particularly interested in papers detailing and demonstrating quantum information protocols for cryptography, communications, computation, and sensing.