Physics – Condensed Matter
Scientific paper
1995-12-12
Physics
Condensed Matter
REVTEX 3.0, 22 pages with 14 figures in the PostScript format compressed using uufile. Submitted to Phys. Rev. B. The complete
Scientific paper
10.1103/PhysRevB.54.7737
We investigate the effect of hole doping on the strong-coupling Hubbard model at half-filling in spatial dimensions $D\ge 1$. We start with an antiferromagnetic mean-field description of the insulating state, and show that doping creates solitons in the antiferromagnetic background. In one dimension, the soliton is topological, spinless, and decoupled from the background antiferromagnetic fluctuations at low energies. In two dimensions and above, the soliton is non-topological, has spin quantum number 1/2, and is strongly coupled to the antiferromagnetic fluctuations. We derive the effective action governing the quasiparticle motion, study the properties of a single carrier, and comment on a possible description at finite concentration.
Gan Junwu
Hedegard Per
Lee Dung-Hai
No associations
LandOfFree
Composite quasiparticle formation and the low-energy effective Hamiltonians of the one- and two-dimensional 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 Composite quasiparticle formation and the low-energy effective Hamiltonians of the one- and two-dimensional Hubbard Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite quasiparticle formation and the low-energy effective Hamiltonians of the one- and two-dimensional Hubbard Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-615700