Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J model

Details Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J model Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J model

1999-04-12

arxiv.org/abs/cond-mat/9904157v1

Nucl. Phys. B 559 [FS] (1999) 613-636

Physics

Condensed Matter

Strongly Correlated Electrons

LaTeX, 24 pp. incl. 4 figures

Scientific paper

10.1016/S0550-3213(99)00403-4

A family of exactly solvable models describing a spin-S Heisenberg chain doped with mobile spin-(S-1/2) carriers is constructed from gl(2|1)-invariant solutions of the Yang-Baxter equation. The models are generalizations of the supersymmetric t-J model which is obtained for S=1/2. We solve the model by means of the algebraic Bethe Ansatz and present results for the zero temperature and thermodynamic properties. At low temperatures the models show spin charge separation, i.e. contain contributions of a free bosonic theory in the charge sector and an SU(2)-invariant theory describing the magnetic excitations. For small carrier concentration the latter can be decomposed further into an SU(2) level-2S Wess-Zumino-Novikov-Witten model and the minimal unitary model M_p with p=2S+1.

Affiliated with

Also associated with

No associations

Rating

Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J 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 Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Doped Heisenberg chains: spin-S generalizations of the supersymmetric t-J model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-346152