Entanglement Resource Extraction in Quantum Many Body Systems

量子多体系统中的纠缠资源提取

• 批准号: 1781307
• 金额: --
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1781307
• 关键词: Entanglement; Resource; Extraction; Quantum; Many

Entanglement in quantum many body systems has been the subject of much research interest since the ability to quantify it first arose. Previous studies have studied the entanglement between two individual spins in a bipartite system; between contiguous blocks of many spins; and between blocks of spins spatially separated from one another. What remains to be studied in detail is the entanglement between distant blocks of spins which belong to the same chain. This is a useful characterisation to make, since it allows for the study of systems whereby external probes interact with the chain and become entangled to one another - thus the natural entanglement in the spin chain can be extracted for use as a resource. The extraction of entanglement in this way is preferable to generation, since it effectively comes for free. The primary aim of this research is to investigate such an entanglement model in various condensed matter systems, and aims to provide a theoretical proposal for its extraction. A further aim is then to investigate the application of this scheme in quantum metrology, and also in investigating the entanglement structure of relativistic fields.

自从量化量子纠缠的能力首次出现以来，量子多体系统中的纠缠一直是人们广泛研究的课题。先前的研究研究了二分系统中两个单独自旋之间的纠缠。在许多旋转的连续块之间；以及在空间上彼此分离的自旋块之间。尚待详细研究的是属于同一链的相距较远的自旋块之间的纠缠。这是一个有用的表征，因为它允许研究外部探针与链相互作用并相互纠缠的系统 - 因此可以提取自旋链中的自然纠缠以用作资源。以这种方式提取纠缠比生成更可取，因为它实际上是免费的。本研究的主要目的是研究各种凝聚态物质系统中的这种纠缠模型，并为其提取提供理论建议。进一步的目标是研究该方案在量子计量学中的应用，以及研究相对论场的纠缠结构。