Middle polariton and Schrödinger's cat induced by exciton-photon-phonon coupling system

IF 2.9 3区物理与天体物理 Q3 NANOSCIENCE & NANOTECHNOLOGY

Physica E-low-dimensional Systems & Nanostructures Pub Date : 2025-03-01 DOI:10.1016/j.physe.2025.116226

Xuebing Gong, Hai Zhu

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引用次数: 0

Abstract

Two-dimensional materials hold significant promise in nanotechnology and optoelectronics. Although strong exciton effects have been observed in experiments with few-layer two-dimensional materials, understanding phonon-exciton interactions remains limited. This paper theoretically examines the energy spectrum of elementary excitations in a three-component exciton-photon-phonon system. In this framework, the phonon-exciton interaction can support a new bound state (middle polariton), which resulting the Rabi oscillation between middle polaritons and lower polaritons. Additionally, this interaction enables the generation of Schrödinger's cat state of the system, which characterized by unique phase space interference, is an ideal candidate for exploring quantum mechanics fundamentals and conducting critical quantum information processing tasks. Our results providing a promising outlook for gaining insights into quantum foundations and quantum metrology, as well as for the development of quantum information.

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二维材料在纳米技术和光电子学领域大有可为。虽然在少层二维材料的实验中观察到了强烈的激子效应，但对声子-激子相互作用的理解仍然有限。本文从理论上研究了三分量激子-声子-声子系统中基本激子的能谱。在此框架下，声子-激子相互作用可支持一种新的束缚态（中极子），从而导致中极子和低极子之间的拉比振荡。此外，这种相互作用还能生成系统的薛定谔猫态，这种态具有独特的相空间干涉特征，是探索量子力学基本原理和执行关键量子信息处理任务的理想候选态。我们的研究成果为深入了解量子基础和量子计量学以及量子信息的发展提供了美好的前景。

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来源期刊

Physica E-low-dimensional Systems & Nanostructures 物理-纳米科技

CiteScore

7.30

自引率

6.10%

发文量

356

审稿时长

65 days

期刊介绍： Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in low-dimensional electron systems, in semiconductor heterostructures, oxide interfaces, quantum wells and superlattices, quantum wires and dots, novel quantum states of matter such as topological insulators, and Weyl semimetals. Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include spin related phenomena, optical and transport properties, many-body effects, integer and fractional quantum Hall effects, quantum spin Hall effect, single electron effects and devices, Majorana fermions, and other novel phenomena. Keywords: • topological insulators/superconductors, majorana fermions, Wyel semimetals; • quantum and neuromorphic computing/quantum information physics and devices based on low dimensional systems; • layered superconductivity, low dimensional systems with superconducting proximity effect; • 2D materials such as transition metal dichalcogenides; • oxide heterostructures including ZnO, SrTiO3 etc; • carbon nanostructures (graphene, carbon nanotubes, diamond NV center, etc.) • quantum wells and superlattices; • quantum Hall effect, quantum spin Hall effect, quantum anomalous Hall effect; • optical- and phonons-related phenomena; • magnetic-semiconductor structures; • charge/spin-, magnon-, skyrmion-, Cooper pair- and majorana fermion- transport and tunneling; • ultra-fast nonlinear optical phenomena; • novel devices and applications (such as high performance sensor, solar cell, etc); • novel growth and fabrication techniques for nanostructures