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.

正在利用量子技术在古典物理学的范围内提供功能和特性。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，以交换量子保护信息。但是，光子之间缺乏相互作用会限制其用于处理任务的使用。为此，在固态量子元素中，光量子与材料激发的杂交可能为实施量子位之间的相互作用提供了优雅的方向。目前，许多类似于人造原子的量子平台已成功地用于产生单光量子，但是光子波长和这些系统的物理大小之间的不匹配阻碍了它们在光腔中的整合，这将通过光子的限制极大地增强其性能。在自组装的同生中，在原子上（2D）半导体（过渡金属二核代元素，TMD）中发现了环境稳定和电场可调的中间层激发剂，这提供了前所未有的机会，可以在Optical Cavities中使用强烈的室内温度混合光子/物质量子平台。这个雄心勃勃的追求是我们跨学科建议的重点，旨在探索新的量子两级系统（Qubits）。室温运行中设想的突破将通过将polariton封锁降低到量子水平，即单叠液，在分层的TMD中确保。具有互补的核心专业知识（Photonics，2D材料和量子光电学）以及他们的学术（LECCE大学）和工业项目合作伙伴（IBM和Waverpoline formintious thembiit speactrine for Trampoline），领先的实验者（Russo和Lagoudakis教授）（Russo和Lagoudakis教授）以及理论家（Portnoi和Kyriienko教授）的协同互动互动 - 量子系统。