外文题目: Spin dynamics of high-spin fermions in optical superlattices
作者: Zhu, Shaobing; Qian, Jun; Wang, Yuzhu
刊名: Chin. Opt. Lett.
年: 2017 卷: 15 期: 6 文章编号：60202
英文关键词:

ULTRACOLD ATOMS; MAGNETISM; LATTICE; GASES
英文摘要:
We investigate the spin dynamics, starting from the initial band-insulating state, of fermionic high-spin atoms in optical superlattices. Through numerical simulations and analytical calculations, we determine the time evolution behavior of the system. When the spin-changing strength and tunneling strength are comparable, the spin dynamics feature a spin-changing oscillation with the amplitude modulated by the superexchange interaction. When the double-well potential is very shallow, the spin dynamics feature a simple harmonic oscillation with the oscillation frequencies related only to the spin-changing strength, which can be properly explained with the perturbation model.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.3788/COL201715.060202


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