3D Quantum Random Walks in Laser-Written Waveguide Structures

激光写入波导结构中的 3D 量子随机游走

• 批准号: 413469995
• 负责人: Professor Dr. Alexander Szameit, Ph.D.
• 金额: --
• 依托单位: Institut für Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/413469995?language=en
• 关键词: 3D; Quantum; Random; Walks; Laser

The aim of our proposal is to promote the understanding and control of quantum random walks (QRWs) of correlated and entangled photons on various lattice geometries, with the vision to establish a basis for new, on-chip quantum simulation and computing applications. Our proposal addresses in particular the field of simulating complex quantum systems. Gaining knowledge about fundamental aspects of quantum transport, is essential to understand a variety of elaborate phenomenon in nature like for instance photosynthesis. Along these lines, by enhancing the QRW complexity to three-dimensional lattice geometries a whole new class of networks can be investigated. Besides the possibility to simulate complicated quantum systems the implementation of quantum search algorithms becomes feasible, which will give a tremendous boost in the field of quantum computation. Since the complete project relies on waveguide lattices it benefits from the advantages of integrated quantum-optical devices. With the superior stability and robustness, it is possible to design quantum networks for photonic QRWs that are orders of magnitudes smaller than bulk-optical systems built on an optical table, that work with higher efficiency and fidelity, and that require much less resources for their implementation. In doing so, advanced on-chip quantum computing and simulations becomes capable of real-world applications.

我们提案的目的是促进对各种晶格几何结构上相关和纠缠光子的量子随机行走（QRW）的理解和控制，以期为新的片上量子模拟和计算应用奠定基础。我们的建议特别涉及模拟复杂量子系统的领域。获得有关量子传输基本方面的知识，对于理解自然界中各种复杂的现象（例如光合作用）至关重要。沿着这些路线，通过提高QRW的复杂性，三维晶格的几何形状的一个全新的网络类可以调查。除了模拟复杂量子系统的可能性之外，量子搜索算法的实现也变得可行，这将极大地推动量子计算领域的发展。由于整个项目依赖于波导晶格，它受益于集成量子光学器件的优势。由于具有上级稳定性和鲁棒性，可以为光子QRW设计量子网络，其数量级小于构建在光学台上的体光学系统，其以更高的效率和保真度工作，并且其实现需要少得多的资源。通过这样做，先进的片上量子计算和模拟变得能够在现实世界中应用。