项目名称: 光晶格中纠缠的产生与判定
项目编号: No.11304304
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 姚星灿
作者单位: 中国科学技术大学
项目金额: 30万元
中文摘要: 纠缠是量子力学最奇妙的特征,它是量子态隐形传输,量子秘钥分发,量子中继器等新兴量子技术的重要元素。同时,它又是许多重要的量子算法和基于测量的量子计算的核心资源,也是量子计算能力能够指数级提高的关键所在。利用光晶格中的长寿命中性原子形成的纠缠,不仅能够提供研究强关联多体量子系统的实验平台,同时它又是最有希望实现可扩展量子信息处理的实验系统。国际上许多著名的实验小组都在致力于产生光晶格中的纠缠。尽管如此,到目前为止,在光晶格中产生多体纠缠仍然是一件非常具有挑战性的事情,此外,人们仍然未能找到一种好的方法来判定光晶格中的纠缠。在该项目中,我们将致力于产生光晶格中的四原子薛定谔猫态和判定光晶格中的Bell态的纠缠,并且我们将利用产生的纠缠态来进行Bell不等式的破坏,任意子的统计性质的模拟等一系列量子信息处理和量子模拟的研究。
中文关键词: 量子纠缠;玻色-费米双超流;高分辨成像;;
英文摘要: Entanglement is one of the most intriguing features of quantum mechanics. It is a necessary ingredient in most emerging quantum technologies, such as quantum teleportation, quantum cryptography, quantum repeaters. Moreover, it is a central resource for the exponential speedup in some quantum algorithms and measurement-based quantum computation. Entanglement of long-lived neutral atoms in optical lattices, not only provides platforms for studying strongly-correlated many-body quantum systems, but also serves as promising candidate for the implementation of scalable quantum information processing. Tremendous experimental efforts have been devoted to generate entanglement in optical lattices. Until now, however, the generation of multi-partite entanglement in optical lattices remains challenging and unambiguous characterization of entanglement in optical lattices has not been reported yet. Here, we propose to create four-atom Schr?dinger cat state and characterize the generated Bell state in optical lattices. Furthermore, we will explore the applications of such kind of entangled states in quantum information processing and quantum simulation such as testing the Bell inequality and simulating the statistical property of anyons.
英文关键词: quantum entanglement;Bose-Fermi double superfluid;high resolution imaging;;