Lattice-Assisted Spectroscopy: A Generalized Scanning Tunneling Microscope for Ultracold Atoms.
Lattice-Assisted Spectroscopy: A Generalized Scanning Tunneling Microscope for Ultracold Atoms.
复制标题
晶格辅助光谱：用于超冷原子的通用扫描隧道显微镜。
DOI：
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发表时间：
2015
影响因子：
8.6
通讯作者：
T. Giamarchi
中科院分区：
文献类型：
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作者：
A. Kantian;U. Schollwock;T. Giamarchi
我们提出了一种方案来测量相关超冷原子的任何光学晶格限制系统的频率分辨局部粒子和空穴光谱，该系统提供单点寻址和成像，现已成为实验现实。结合微扰理论和瞬态密度矩阵重正化群模拟，我们在几个一维示例系统（例如超流体和莫特绝缘体，有或没有抛物线陷阱）以及最后在玻色子 Su-Schrieffer-Heeger 模型的边缘态上定量测试和验证了这种晶格辅助光谱方法。我们重点介绍我们的基本方案的扩展，以获得更广泛的有趣且重要的频率分辨光谱。
We propose a scheme to measure the frequency-resolved local particle and hole spectra of any optical lattice-confined system of correlated ultracold atoms that offers single-site addressing and imaging, which is now an experimental reality. Combining perturbation theory and time-dependent density matrix renormalization group simulations, we quantitatively test and validate this approach of lattice-assisted spectroscopy on several one-dimensional example systems, such as the superfluid and Mott insulator, with and without a parabolic trap, and finally on edge states of the bosonic Su-Schrieffer-Heeger model. We highlight extensions of our basic scheme to obtain an even wider variety of interesting and important frequency resolved spectra.