通过参数控制原子-腔态增强量子纠缠

IF 2.2 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Annalen der Physik Pub Date : 2024-12-16 DOI:10.1002/andp.202400266

Arthur Vesperini, Roberto Franzosi

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引用次数: 0

摘要

Dicke态是一类纠缠态，因其在各种量子算法中的应用而备受关注。它们以Tavis-Cummings （TC）哈密顿量的特征态出现，这是Dicke模型的简化，Dicke模型描述了被困在电磁腔中的两能级原子的集合。在这封信中，证明了在相对于原子能分裂的场能量较大的状态下，可以实现对基态的精确控制。具体来说，可以通过适当调整参数来选择和产生纯迪克态。这一结果在量子工程和量子信息理论中具有重要的应用价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhancing Quantum Entanglement Through Parametric Control of Atom-Cavity States

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Enhancing Quantum Entanglement Through Parametric Control of Atom-Cavity States

Dicke states form a class of entangled states that has attracted much attention for their applications in various quantum algorithms. They emerge as eigenstates of the Tavis–Cummings (TC) Hamiltonian, a simplification of the Dicke model, which describes an assembly of two-level atoms trapped in an electromagnetic cavity. In this letter, it is showed that in the regime where the field energy is large with respect to the atomic energy splitting, precise control of the ground state can be implemented. Specifically, pure Dicke states can be selected and produced by appropriate tuning of the parameters. This result may have important applications in quantum engineering and quantum information theory.

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来源期刊

Annalen der Physik 物理-物理：综合

CiteScore

4.50

自引率

8.30%

发文量

202

审稿时长

3 months

期刊介绍： Annalen der Physik (AdP) is one of the world''s most renowned physics journals with an over 225 years'' tradition of excellence. Based on the fame of seminal papers by Einstein, Planck and many others, the journal is now tuned towards today''s most exciting findings including the annual Nobel Lectures. AdP comprises all areas of physics, with particular emphasis on important, significant and highly relevant results. Topics range from fundamental research to forefront applications including dynamic and interdisciplinary fields. The journal covers theory, simulation and experiment, e.g., but not exclusively, in condensed matter, quantum physics, photonics, materials physics, high energy, gravitation and astrophysics. It welcomes Rapid Research Letters, Original Papers, Review and Feature Articles.