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arXiv 1012.0845cond-mat.quant-gas
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光晶格中超冷费米子的近邻关联研究

Probing nearest-neighbor correlations of ultracold fermions in an optical lattice

Daniel Greif, Leticia Tarruell, Thomas Uehlinger, Robert Jördens, Tilman Esslinger

摘要:

我们研究了光晶格中费米子量子气体的最近邻关联。它提供了访问相邻网站的自旋和密度配置,并依赖于通过微扰晶格调制创建额外的双占据网站。不同晶格温度的测量关联与从头计算没有任何拟合参数是很好的协议。该探针为研究磁有序相的方法开辟了新的前景。

英文摘要:

We demonstrate a probe for nearest-neighbor correlations of fermionic quantum gases in optical lattices. It gives access to spin and density configurations of adjacent sites and relies on creating additional doubly occupied sites by perturbative lattice modulation. The measured correlations for different lattice temperatures are in good agreement with an ab initio calculation without any fitting parameters. This probe opens new prospects for studying the approach to magnetically ordered phases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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