Matter wave spectroscopy of the many-body physics in optical lattices

光学晶格中多体物理的物质波谱

• 批准号: 201192159
• 负责人: Professor Dr. Andreas Buchleitner
• 金额: --
• 依托单位: Arbeitsgruppe Quantenoptik und -statistik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 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/201192159?language=en
• 关键词: Matter; wave; spectroscopy; many; body

We seek to develop matter wave spectroscopy and interferometry for probing the many-body physics of ultracold atoms in an optical lattice. The applicants’ work, which revealed a clear dependence of matter wave scattering on the superfluid to Mott insulator phase transition [1], opens the door to studies of critical behavior of the scattering in the region of the phase transition, as well as imaging of purely quantum mechanical fluctuations and correlations. In order to accomplish the latter, we will exploit atom interferometry, in which a probe beam is accompanied by a coherent reference beam, to enable observation of quantum mechanical phases, which echo the density fluctuations in an optical lattice. Having developed a robust understanding for matter wave probes of bosonic targets, we will turn our attention to probing the distinct physics that appears in fermionic systems. Finally, we will incorporate disorder and partially filled lattices, and examine the regimes in which matter wave interference phenomena, such as Anderson localization, survive inelastic scattering of the atoms in the lattice.

我们寻求发展物质波光谱和干扰光学晶格中超低原子的多体物理学。申请人的工作揭示了物质波散射对莫特绝缘体相变的超氟[1]的明显依赖性，这为研究相变散射的临界行为开辟了大门，以及对纯粹的量子机械波动和相关性的成像。为了完成后者，我们将利用原子干扰，其中探针梁伴随着一致的参考光束，以使观察量子机械阶段观察，这与光学晶格中的密度波动相呼应。在对骨骼靶标的物质波问题建立了强有力的理解之后，我们将把注意力转向探测费米子系统中出现的不同物理学。最后，我们将融合混乱和部分填充的晶格，并检查物质波动干扰现象（例如安德森定位）在晶格中原子的无弹性散射。

项目成果

Stringent and efficient assessment of boson-sampling devices.

对玻色子采样装置进行严格高效的评估

• DOI: 10.1103/physrevlett.113.020502
• 发表时间: 2014
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: M. C. Tichy;K. Mayer;A. Buchleitner;K. Mølmer
• 通讯作者: K. Mølmer

Matter-wave scattering from interacting bosons in an optical lattice

光学晶格中相互作用的玻色子的物质波散射

• DOI: 10.1103/physreva.90.023629
• 发表时间: 2014
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: K. Mayer;A. Rodriguez;A. Buchleitner
• 通讯作者: A. Buchleitner

Matter-wave scattering from strongly interacting bosons in an optical lattice

光学晶格中强相互作用玻色子的物质波散射

• DOI: 10.1103/physreva.91.053633
• 发表时间: 2015
• 期刊: arXiv: Quantum Physics
• 作者: K. Mayer;A. Rodriguez;A. Buchleitner
• 通讯作者: A. Buchleitner