Advanced Entanglement from Quantum Dots

量子点的高级纠缠

• 批准号: 428026575
• 负责人: Dr. Doris Reiter
• 金额: --
• 依托单位: Institut für Halbleiter- und Festkörperphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/428026575?language=en
• 关键词: Advanced; Entanglement; Quantum; Dots

Communication is about to be revolutionized by the usage of quantum mechanics, known as the second quantum revolution. At the heart of this revolution are the exploitation of entangled states, which do not have any classical analogue. Therefore, the efficient creation of entangled states is crucial in this endeavor and the race of the search for the ideal source of entangled photon pairs is at its peak. The main goal of our project is to bring forward semiconductor quantum dots as usable source of entangled photon pairs. A new angle is added by a fundamentally new ingredient, namely the dark exciton states, for the controlled biexciton generation and subsequently the deterministic generation of time-bin entangled photons. We will consider advanced creation of time-bin entangled photon states, as well as multilevel entanglement and multiphoton entanglement using single quantum dots and quantum dot molecules. We aim to achieve these goals by a strong joint theoretical and experimental effort to turn the potential of quantum dots as entangled photon source into a useful set of tools for quantum communication, eventually leading to the construction of usable quantum repeaters.

量子力学的使用将使通信发生革命性的变化，这被称为第二次量子革命。这场革命的核心是利用纠缠态，它没有任何经典的类似物。因此，有效地创造纠缠态是至关重要的，在这奋进和种族的理想源的纠缠光子对的搜索是在其高峰。我们的主要目标是提出半导体量子点作为纠缠光子对的可用源。一个新的角度添加了一个根本上新的成分，即暗激子状态，为受控的双激子的产生，随后确定性的时间仓纠缠光子的产生。我们将考虑先进的时间仓纠缠光子态的创建，以及使用单量子点和量子点分子的多级纠缠和多光子纠缠。我们的目标是通过强有力的理论和实验联合努力来实现这些目标，将量子点作为纠缠光子源的潜力转化为一套有用的量子通信工具，最终导致构建可用的量子中继器。