Non-Markovian continuous-time quantum random walks of multiple interacting particles

多个相互作用粒子的非马尔可夫连续时间量子随机游走

• 批准号: 278224170
• 负责人: Professor Dr. Kurt Busch
• 金额: --
• 依托单位: Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/278224170?language=en
• 关键词: Non; Markovian; continuous; time; quantum

In quantum physics, environmental noise represents the most prominent adversary that precludes the generation, control, and preservation of fundamental properties such as coherence, entanglement, and quantum correlations. More precisely, in such open quantum systems the phase properties of the associated quantum mechanical waves are randomly distorted by the environment, as a result their interference capability or ‘coherence’ tends to vanish. Indeed, the fragility of quantum coherence is one of the main impediments for the development of quantum-enhanced technologies. Clearly, identifying mechanisms to prevent or slow down decoherence effects in quantum systems is an issue of scientific and practical importance. Even though there exist some investigations examining the influence of decoherence and disorder on the dynamics of two-particle systems, the joint effects of decoherence, particle indistinguishability, and inter-particle interactions are poorly understood. The aim of this proposal is to investigate the behavior of multiple interacting particles traversing dynamically disordered quantum systems. In doing so, we have we will identify ways to impose tailored dynamic disorder into waveguide networks. The present proposal essentially interfaces theoretical and experimental investigations of the open quantum systems. Our studies will advance our understanding of the primary physical events occurring in quantum complex systems. In addition, our work will help to identify potential applications of decoherence to control photon encoded information and many-body quantum correlations. Importantly, our theoretical findings will always be tested experimentally within the context of integrated quantum photonics.

在量子物理学中，环境噪声代表了最突出的对手，它排除了基本特性（例如相干，纠缠和量子相关性）的产生，控制和制备。更确切地说，在这样的开放量子系统中，相关量子机械波的相位性质被环境随机变形，因此它们的干扰能力或“连贯性”趋于消失。实际上，量子相干性的脆弱性是开发量子增强技术的主要障碍之一。显然，识别量子系统中预防或减慢反应效应的机制是科学和实际重要性的问题。即使进行了一些研究，研究了逆转和混乱对两粒子系统动力学的影响，但对谐波，粒子不可区分性和颗粒间相互作用的关节作用也很熟悉。该建议的目的是研究遍历动态无序量子系统的多个相互作用粒子的行为。这样一来，我们将确定将量身定制的动态障碍施加到波导网络中的方法。本建议基本上将开放量子系统的理论和实验研究接口。我们的研究将促进我们对量子复杂系统中发生的主要物理事件的理解。此外，我们的工作将有助于确定反矫正性的潜在应用，以控制光子编码的信息和多体量子相关性。重要的是，我们的理论发现将始终在综合量子光子学的背景下进行实验测试。