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arXiv 0910.3435physics.atom-ph
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光晶格作为原子干涉仪的波导和分束器：分析处理和应用建议

Optical Lattices as Waveguides and Beam Splitters for Atom Interferometry: An Analytical Treatment and Proposal of Applications

Tim Kovachy, Jason M. Hogan, David M. S. Johnson, Mark A. Kasevich

备注：
25 pages, 7 figures
发表信息：
Phys. Rev. A 82, 013638 (2010)
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摘要：

利用微扰绝热膨胀方法对光晶格中原子的动力学行为进行了解析描述。准确理解晶格-原子相互作用对于充分利用光晶格在原子干涉测量领域中的应用前景至关重要。一个这样的应用是实现大动量转移（LMT）分束器，其可以潜在地提供超过当前技术的动量空间分离的多个数量级的增加。我们还提出了干涉仪的几何结构，其中光晶格被用作整个干涉仪序列的持续时间的原子的波导。与当前最先进的原子干涉仪相比，这种技术可以同时为许多应用提供灵敏度的多个数量级增加和干涉仪尺寸的多个数量级减小。

英文摘要：

We provide an analytical description of the dynamics of an atom in an optical lattice using the method of perturbative adiabatic expansion. A precise understanding of the lattice-atom interaction is essential to taking full advantage of the promising applications that optical lattices offer in the field of atom interferometry. One such application is the implementation of Large Momentum Transfer (LMT) beam splitters that can potentially provide multiple order of magnitude increases in momentum space separations over current technology. We also propose interferometer geometries where optical lattices are used as waveguides for the atoms throughout the duration of the interferometer sequence. Such a technique could simultaneously provide a multiple order of magnitude increase in sensitivity and a multiple order of magnitude decrease in interferometer size for many applications as compared to current state-of-the-art atom interferometers.

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