Supersolids in one dimensional Bose Fermi mixtures

Details Supersolids in one dimensional Bose Fermi mixtures Supersolids in one dimensional Bose Fermi mixtures

2008-08-25

arxiv.org/abs/0808.3321v1

Phys. Rev. B 78, 184505 (2008)

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevB.78.184505

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., exhibiting 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.

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