Ultracold quantum gases in optical lattices - Structure and excitations beyond the mean-field approximation (C06)

光学晶格中的超冷量子气体 - 超出平均场近似的结构和激发（C06）

• 批准号: 201295474
• 金额: --
• 依托单位: I. Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/201295474?language=en
• 关键词: Ultracold; quantum; gases; optical; lattices

Project C6 investigates ultracold quantum gases with different components (spin and species) from a theoretical perspective, using a synthesis of exact numerical and analytical field theoretical approaches. In particular, we address the role of high energy degrees of freedom for the dynamics of systems driven through phase boundaries (collaboration with C1, C4, B2, B5), the time evolution of correlations in systems with different masses of the components in view of the analogy to Kondo- and RKKY-correlations (collaboration with C2, C3, B5), the long-time many-particle decay of meta-stable states (collaboration with B3, A1, A2, A3, A5), and the decoherence of the many-particle wave function during a double-quench across the phase boundary (collaboration with C1 and C4).

C6项目从理论角度研究具有不同组分（自旋和物种）的超冷量子气体，使用精确数值和分析场论方法的合成。特别是，我们解决的作用，高能量自由度的动态系统驱动通过相边界（与C1，C4，B2，B5合作），考虑到与Kondo和RKKY相关性的类比，具有不同质量组分的系统中相关性的时间演化（与C2，C3，B5合作），亚稳态的长时间多粒子衰变（与B3，A1，A2，A3，A5合作），和退相干的多粒子波函数在双淬火跨越相边界（与C1和C4合作）。