Effect of mediated interactions on a Hubbard chain in mixed-dimensional fermionic cold atoms
Effect of mediated interactions on a Hubbard chain in mixed-dimensional fermionic cold atoms
复制标题
混合维费米子冷原子中哈伯德链介导相互作用的影响
DOI:
10.1103/physrevresearch.2.033054
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发表时间:
2020
影响因子:
4.2
通讯作者:
Tsai, Shan-Wen
中科院分区:
文献类型:
--
作者:
Okamoto, Junichi;Huang, Wen-Min;Irwin, Kyle;Campbell, David K.;Tsai, Shan-Wen
Cold atom experiments can now realize mixtures where different components move in different spatial dimensions. We investigate a fermion mixture where one species is constrained to move along a one-dimensional lattice embedded in a two-dimensional lattice populated by another species of fermions, and where all bare interactions are contact interactions. By focusing on the one-dimensional fermions, we map this problem onto a model of fermions with nonlocal interactions on a chain. The effective interaction is mediated by the two-dimensional fermions and is both attractive and retarded, the form of which can be varied by changing the density of the two-dimensional fermions. By using the functional renormalization group in the weak-coupling limit and ignoring the retardation effect, we show that the one-dimensional fermions can be controlled to be in various density-wave, or spin-singlet or spin-triplet superconducting phases.
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影响因子:
8.6
作者:
Jin Zhang;J. Unmuth-Yockey;Johannes Zeiher;A. Bazavov;Shan-Wen Tsai;Y. Meurice
通讯作者:
Jin Zhang;J. Unmuth-Yockey;Johannes Zeiher;A. Bazavov;Shan-Wen Tsai;Y. Meurice
影响因子:
3.7
作者:
P. Sengupta;A. Sandvik;D. Campbell
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P. Sengupta;A. Sandvik;D. Campbell
影响因子:
3.7
作者:
S. Kelly;S. Tsai
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影响因子:
2.9
作者:
Iskin, M.;Subasi, A. L.
通讯作者:
Subasi, A. L.
影响因子:
2.9
作者:
Wen Huang;Kyle Irwin;S. Tsai
通讯作者:
Wen Huang;Kyle Irwin;S. Tsai