Electric and optical manipulation of 2D excitons for room temperature polariton blockade and valley qubits

用于室温极化子封锁和谷量子位的二维激子的电和光操纵

• 批准号: EP/Y021339/1
• 负责人: Saverio Russo
• 金额: $ 120.2万
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY021339%2F1
• 关键词: Electric; optical; manipulation; 2D; excitons

Quantum technologies are being harnessed to deliver functionalities and properties otherwise unattainable within the confines of classical physics. For example, quantum communication and information are increasingly reliant on light beams with strongly non-classical properties for the exchange of quantum-protected information. However, the lack of interaction between photons limits their use for processing tasks. To this end, the hybridization of the light quanta to material excitations in a solid-state quantum element may offer an elegant way forward to implement the interaction between quantum bits. Presently a number of quantum platforms analogous to artificial atoms have been successfully used to generate single light quanta, yet the mismatch between the photon wavelength and the physical size of these systems hinders their integration in optical cavities which would greatly enhance their performance through the confinement of photons. The recent discovery of ambient-stable and electric field tuneable interlayer excitons in self-assembled homobilayers atomically thin (2D) semiconductors (transition metal dichalcogenides, TMD), offers an unprecedented opportunity to pioneer room temperature hybrid photon/matter quantum platforms in the strongly correlated regime in optical cavities. This ambitious quest is the focus of our interdisciplinary proposal which aims to explore a new class of quantum two-level systems (qubits). The envisioned breakthrough in the room temperature operation will be secured by exploiting polariton blockade down to the quantum level, i.e. single-polariton, in layered TMDs. The synergic interaction of leading experimentalists (Prof Russo and Prof Lagoudakis) and theorists (Prof Portnoi and Dr Kyriienko) with complementary core expertise (photonics, 2D material and quantum opto-electronics) and their academic (University of Lecce) and industrial project partners (IBM and WaveOptics) will be the trampoline for launching this ambitious science discovery into ground-breaking quantum systems.

量子技术被用来提供经典物理学范围内无法实现的功能和特性。例如，量子通信和信息越来越依赖于具有强烈非经典特性的光束来交换量子保护的信息。然而，光子之间缺乏相互作用限制了它们在处理任务中的使用。为此，固态量子元件中光量子与材料激发的混合可能为实现量子位之间的交互提供一种优雅的方法。目前，许多类似于人造原子的量子平台已成功用于产生单光量子，但光子波长与这些系统的物理尺寸之间的不匹配阻碍了它们在光腔中的集成，这将通过限制光腔来极大地提高它们的性能。光子。最近在自组装同质双层原子薄（2D）半导体（过渡金属二硫属化物，TMD）中发现了环境稳定且电场可调的层间激子，为在强相关领域开拓室温混合光子/物质量子平台提供了前所未有的机会光腔中的状态。这一雄心勃勃的探索是我们跨学科提案的重点，该提案旨在探索一类新型量子两级系统（量子位）。通过在层状 TMD 中利用量子水平的极化子封锁（即单极化子），可以确保室温操作的预期突破。具有互补核心专业知识（光子学、二维材料和量子光电子学）的领先实验家（Russo 教授和 Lagoudakis 教授）和理论家（Portnoi 教授和 Kyriienko 博士）及其学术（莱切大学）和工业项目合作伙伴的协同互动（ IBM 和 WaveOptics）将成为将这一雄心勃勃的科学发现引入突破性量子系统的蹦床。