Imaging the Mott Insulator Shells by Using Atomic Clock Shifts
Imaging the Mott Insulator Shells by Using Atomic Clock Shifts
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DOI：
10.1126/science.1130365
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发表时间：
2006-05
期刊：
影响因子：
56.9
通讯作者：
G. Campbell;J. Mun;M. Boyd;P. Medley;A. Leanhardt;L. Marcassa;D. Pritchard;W. Ketterle
中科院分区：
文献类型：
--
作者：
G. Campbell;J. Mun;M. Boyd;P. Medley;A. Leanhardt;L. Marcassa;D. Pritchard;W. Ketterle
微波光谱用于探测三维光学晶格中玻色-爱因斯坦凝聚态的超流体-莫特绝缘体转变。通过使用密度相关的跃迁频移，我们能够在光谱上区分具有不同占据数的位点，并直接对占据数从 1 到 5 的位点进行成像，揭示莫特绝缘体相的壳结构。我们使用这种光谱来确定单个壳的现场相互作用和寿命。
Microwave spectroscopy was used to probe the superfluid–Mott insulator transition of a Bose-Einstein condensate in a three-dimensional optical lattice. By using density-dependent transition frequency shifts, we were able to spectroscopically distinguish sites with different occupation numbers and to directly image sites with occupation numbers from one to five, revealing the shell structure of the Mott insulator phase. We used this spectroscopy to determine the onsite interaction and lifetime for individual shells.