项目名称: 量子Fisher信息及其在玻色-爱因斯坦凝聚非线性动力学中的应用
项目编号: No.11347013
项目类型: 专项基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 宋立军
作者单位: 长春大学
项目金额: 20万元
中文摘要: 近年来,量子Fisher信息及其在凝聚态物理领域的应用研究引起人们广泛关注。虽然相关理论工作已有很多,但应用于玻色-爱因斯坦凝聚(简称BEC)非线性动力学方面还很有限。我们在前期研究中发现,利用量子Fisher信息可以很好地标识量子混沌。本项目拟就量子Fisher信息在BEC非线性动力学方面的应用开展深入研究。 具体内容包括:(1)在周期驱动BEC中利用量子Fisher信息标识量子混沌与量子相变。(2)在双势阱BEC中考察周期驱动对原子约瑟夫森振荡及自囚禁的影响。(3)在旋量BEC中探索周期驱动外场对非线性隧穿动力学过程的相干控制。(4)探索BEC中电磁感应透明对量子Fisher信息过程的相干控制。(5)揭示BEC中利用量子Fisher信息描述量子经典对应关系的方法。 本项目属量子信息理论、统计理论和凝聚态物理的交叉领域,在该领域开展研究具有重要的理论意义和潜在的应用价值。
中文关键词: 量子Fisher信息;玻色-爱因斯坦凝聚;非线性动力学;量子混沌;纠缠
英文摘要: In recent years, quantum Fisher information and its applications in condensate physics have attracted much attention. Though a lot of related theoretical work has been done, studies on its applications in Bose-Einstein condensate (BEC for short) nonlinear dynamics are still very limited. In earlier studies, we have found that quantum chaos can be finely signatured by using Fisher information, and this project aims to further study the applications of Fisher information in periodically driven BEC nonlinear dynamics , which mainly includes: 1)using quantum Fisher information to signature quantum chaos and quantum phase transition in periodically driven BEC; 2)examining the influence of periodical drive on atomic Josephson oscillation and self-trapping in double well BEC; 3)exploring the coherence control of external driving field on nonlinear tunneling dynamic process in spinor BEC; 4)exploring the coherence control of electromagnetically induced transparency on quantum Fisher information process; 5)discovering the method for defining the quantum-classical correspondence in periodically driven BEC by using quantum Fisher information. This research is an interdisciplinary study of quantum information theory, statistics theory and condensate physics, which is of highly theoretical importance and potential applicati
英文关键词: quantum Fisher information;Bose-Einstein condensate;nonlinear dynamic;quantum chaos;entanglement