Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit

Details Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit

2008-11-04

arxiv.org/abs/0811.0590v2

Physics

Condensed Matter

Strongly Correlated Electrons

added two new references following recent communication

Scientific paper

What kind of lattice Hamiltonian manifestly has an ordered state with spontaneous orbital currents? We consider interacting spinless fermions on an array of square plaquettes, connected by weak hopping; the array geometry may be a 2 x 2L ladder, a 2 x 2 x 2L "tube", or a 2L x 2L square grid. At half filling, we derive an effective Hamiltonian in terms of pseudospins, of which one component represents orbital currents, and find the conditions sufficient for orbital current long-range order. We consider spinfull variants of the aforesaid spinless models and make contact with other spinfull models in the literature purported to possess spontaneous currents.

Affiliated with

Also associated with

No associations

Rating

Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit 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 Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spontaneous Currents in Spinless Fermion Lattice Models at the Strong-Coupling Limit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-184774