Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model

Details Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model

2009-03-30

arxiv.org/abs/0903.5226v2

Physics

Condensed Matter

Other Condensed Matter

4+epsilon pages; major revision containing new numerical results

Scientific paper

The ground-state phase diagram of mixtures of spin polarized fermions and bosons in a 1D periodic lattice is discussed in the limit of large fermion hopping and half filling of the fermions. Numerical simulations performed with the density matrix renormalization group (DMRG) show besides bosonic Mott insulating (MI), superfluid (SF), and charge density-wave phases (CDW) a novel phase with spatial separation of MI and CDW regions. We derive an effective bosonic theory which allows for a complete understanding and quantitative prediction of the bosonic phase diagram. In particular the origin of CDW phase and the MI-CDW phase separation is revealed as the interplay between fermion-induced mean-field potential and long range interaction with alternating sign.

Affiliated with

Also associated with

No associations

Rating

Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model 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 Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fermion mediated long-range interactions of bosons in the 1D Bose-Fermi-Hubbard model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-425221