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摘要翻译：
研究了一维光学超晶格对Mott绝缘体的超流分数、数压缩、动力学结构因子和准动量分布的影响。我们发现，由于二次晶格的存在，超流分数和数涨落都有所减少。由于二次晶格的加入，可以用Bragg谱测量的动态结构因子也被抑制了。发现由于二次晶格的存在，Mott绝缘体干涉条纹（准动量分布）的可见度降低。我们的结果对原子干涉测量和光晶格中的量子计算具有重要的意义。
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英文标题：
《Coherence Properties of a Bose-Einstein Condensate in an Optical
Superlattice》
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作者：
Aranya B Bhattacherjee
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
We study the effect of a one dimensional optical superlattice on the superfluid fraction, number squeezing, dynamic structure factor and the quasi-momentum distribution of the Mott-insulator. We show that due to the secondary lattice,there is a decrease in the superfluid fraction and the number fluctuation. The dynamic structure factor which can be measured by Bragg spectroscopy is also suppressed due to the addition of the secondary lattice. The visibility of the interference pattern (the quasi-momentum distribution)of the Mott-insulator is found to decrease due to the presence of the secondary lattice. Our results have important implications in atom interferometry and quantum computation in optical lattices.
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PDF链接：
https://arxiv.org/pdf/705.2319
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