Supersolids in one-dimensional Bose-Fermi mixtures

Article

关键词: HELIUM;    PHASE;   

DOI  :  10.1103/PhysRevB.78.184505

来源: SCIE

【 摘 要 】

Using quantum Monte Carlo simulations, we study a mixture of bosons and fermions loaded on an optical lattice. With simple on-site repulsive interactions, this system can be driven into a solid phase. We dope this phase and, in analogy with pure bosonic systems, identify the conditions under which the bosons enter a supersolid phase, i.e., exhibit at the same time charge density-wave and superfluid order. We perform finite-size scaling analysis to confirm the presence of a supersolid phase and discuss its properties, showing that it is a collective phase that also involve phase coherence of the fermions.

【 授权许可】

Free