Quantum coherent states of interacting Bose-Fermi mixtures in one dimension
Quantum coherent states of interacting Bose-Fermi mixtures in one dimension
复制标题
DOI：
10.1103/physrevresearch.4.l022034
复制
发表时间：
2021-10
影响因子：
4.2
通讯作者：
C. Peacock;Aleksandar Ljepoja;C. Bolech
中科院分区：
文献类型：
--
作者：
C. Peacock;Aleksandar Ljepoja;C. Bolech
我们研究一维中涉及玻色子和费米子的双组分原子气体混合物。当物种间相互作用有吸引力时，我们报告了丰富多样的相干基态相，这些相干基态相随着相互作用的内在和相对强度而变化。我们通过开发一种针对混合物的连续矩阵乘积状态模拟的新颖实现来避免晶格离散化的任何伪影，并事先证明了我们的方法在具有相等质量和相互作用的混合物（莱阳模型）中存在的可积点上的有效性，我们发现模拟正确且系统地收敛到精确结果。
We study two-component atomic gas mixtures in one dimension involving both bosons and fermions. When the inter-species interaction is attractive, we report a rich variety of coherent ground-state phases that vary with the intrinsic and relative strength of the interactions. We avoid any artifacts of lattice discretization by developing a novel implementation of a continuous matrix product state ansatz for mixtures and priorly demonstrate the validity of our approach on the integrable point that exists for mixtures with equal masses and interactions (Lai-Yang model) where we find that the ansatz correctly and systematically converges towards the exact results.