Boson Hubbard model with weakly coupled Fermions

Details Boson Hubbard model with weakly coupled Fermions Boson Hubbard model with weakly coupled Fermions

2008-06-17

arxiv.org/abs/0806.2865v2

Phys. Rev. B 78, 220504(R) (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure; final version as published in PRB

Scientific paper

10.1103/PhysRevB.78.220504

Using an imaginary-time path integral approach, we develop the perturbation theory suited to the boson Hubbard model, and apply it to calculate the effects of a dilute gas of spin-polarized fermions weakly interacting with the bosons. The full theory captures both the static and the dynamic effects of the fermions on the generic superfluid-insulator phase diagram. We find that, in a homogenous system described by a single-band boson Hubbard Hamiltonian, the intrinsic perturbative effect of the fermions is to generically suppress the insulating lobes and to enhance the superfluid phase.

Affiliated with

Also associated with

No associations

Rating

Boson Hubbard model with weakly coupled Fermions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Boson Hubbard model with weakly coupled Fermions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boson Hubbard model with weakly coupled Fermions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-271811