录像带原子芯片实验：碎裂和输运研究
Experiments on a videotape atom chip: fragmentation and transport studies
摘要：
本文报道了超冷铷原子被限制在微型磁阱中的实验，磁阱是用安装在原子芯片上的磁化录像带制作的。的粗糙度的限制潜力的研究与原子云在几个微开尔文的温度和在30和80微米之间的距离从录像带芯片表面。通过这种方式，表征了由靠近芯片中心区域的磁化录像带产生的磁场的不均匀性。此外，我们展示了一种新的传输机制，使我们运送冷原子限制在阵列的录像带磁微陷阱的距离高达1厘米平行的芯片表面。这种输送机制使我们能够调查芯片的表面，并观察不同区域的潜在粗糙度效应。
英文摘要：
This paper reports on experiments with ultra-cold rubidium atoms confined in microscopic magnetic traps created using a piece of periodically-magnetized videotape mounted on an atom chip. The roughness of the confining potential is studied with atomic clouds at temperatures of a few microKelvin and at distances between 30 and 80 microns from the videotape-chip surface. The inhomogeneities in the magnetic field created by the magnetized videotape close to the central region of the chip are characterized in this way. In addition, we demonstrate a novel transport mechanism whereby we convey cold atoms confined in arrays of videotape magnetic micro-traps over distances as large as ~ 1 cm parallel to the chip surface. This conveying mechanism enables us to survey the surface of the chip and observe potential-roughness effects across different regions.
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