arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1709.08484cond-mat.quant-gas
收藏

光学超晶格中的原子对

Atom Pairing in Optical Superlattices

J. Kangara, Chingyun Cheng, S. Pegahan, I. Arakelyan, J. E. Thomas

摘要:

我们利用射频光谱研究了一维可调双势阱晶格中的费米子配对。光谱揭示了具有不同对称性的两种类型的原子对共存。我们的测量结果与理论模型非常吻合,该模型是通过扩展Orso等人的格林函数方法获得的,[Phys. Rev. Lett. 95,060402(2005)],转化为具有有限谐波径向限制的双色1D晶格。预测的光谱包括数百个离散的过渡,依赖于初始状态的人口和过渡强度。我们的工作提供了在超晶格中的基本配对状态的理解,铺平了道路的强相互作用的多体系统的新研究。

英文摘要:

We study the pairing of fermions in a one-dimensional lattice of tunable double-well potentials using radio-frequency spectroscopy. The spectra reveal the coexistence of two types of atom pairs with different symmetries. Our measurements are in excellent quantitative agreement with a theoretical model, obtained by extending the Green's function method of Orso et al., [Phys. Rev. Lett. 95, 060402 (2005)], to a bichromatic 1D lattice with finite harmonic radial confinement. The predicted spectra comprise hundreds of discrete transitions, with symmetry-dependent initial state populations and transition strengths. Our work provides an understanding of the elementary pairing states in a superlattice, paving the way for new studies of strongly interacting many-body systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑