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arXiv 1312.3402cond-mat.quant-gas
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磁晶格中玻色-爱因斯坦凝聚体的周期性排列

Periodic Array of Bose-Einstein condensates in a Magnetic Lattice

Smitha Jose, Prince Surendran, Yibo Wang, Ivan Herrera, Leszek Krzemien, Shannon Whitlock, Russell McLean, Andrei Sidorov, Peter Hannaford

备注：
5 pages, 2 figures
发表信息：
Phys. Rev. A 89, 051602 (2014)
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摘要：

我们报道了~（87）Rb的玻色-爱因斯坦凝聚体周期阵列的实现|F = 1; mF = -1>被捕获在一维磁晶格中的原子，该磁晶格靠近原子芯片的表面（8微米）。一个明确的签名为BEC的发病在磁晶格中提供了由原位分辨射频（RF）光谱，表现出明显的双峰分布组成的一个狭窄的组件特性的BEC连同一个广泛的热云组件。类似的双峰分布被发现为各种网站的磁晶格。在磁晶格中实现多个BEC的周期性阵列代表了实现磁晶格以模拟复杂几何形状和任意周期的晶格中的多体凝聚态现象的重大进展。

英文摘要：

We report the realization of a periodic array of Bose-Einstein condensates of 87Rb |F = 1; mF = -1> atoms trapped in a one-dimensional magnetic lattice close (8 micrometres) to the surface of an atom chip. A clear signature for the onset of BEC in the magnetic lattice is provided by in-situ site-resolved radiofrequency (RF) spectra, which exhibit a pronounced bimodal distribution consisting of a narrow component characteristic of a BEC together with a broad thermal cloud component. Similar bimodal distributions are found for various sites across the magnetic lattice. The realization of a periodic array of multiple BECs in a magnetic lattice represents a major advance towards the implementation of magnetic lattices to simulate many-body condensed matter phenomena in lattices of complex geometry and arbitrary period.

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