Complete Solution of a Supersymmetric Extended Hubbard Model

نویسندگان

  • Kareljan Schoutens
  • Joseph Henry
چکیده

We show that the recently constructed exact solution of the SU(2|2) extended Hub-bard model on a one-dimensional lattice provides a complete set of 4 L eigenstates of the hamiltonian, where L is the length of the lattice.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ground state and excitations of the extended Hubbard model

We examine the ground state and excitations of the one dimensional extended Hubbard model with long range interaction. The ground state wavefunction and low lying excitations are given explicitly in the form of a Jastrow product of two-body terms. This result motivates an asymptotic Bethe ansatz solution for the model. We present evidence that this solution is in fact exact and spans the comple...

متن کامل

Integrable SU(m|n) supersymmetric electronic models of strong correlations

We generalize the SU (2|2) symmetric extended Hubbard model of 1/r 2 interaction to the SU (m|n) supersymmetric case. Integrable models may be defined on both uniform and non-uniform one dimensional lattices. We study both cases in detail and present the ground state wavefunctions and energy spectra of these models.

متن کامل

Spectrum of Low-lying Excitations in a Supersymmetric Extended Hubbard Model 1

We continue the study of the u(2j2)-supersymmetric extension of the Hubbard model in one dimension. We determine the excitation spectrum at zero temperature even in the sectors where the ground states are u(2j2)-descendants of Bethe states. The ex-citations include spinons, holons, electrons, localons (local electrons pairs, moving coherently through the lattice) and their bound states. The spe...

متن کامل

Integrable supersymmetric correlated electron chain with open boundaries

We construct an extended Hubbard model with open boundaries from a R-matrix based on the U q [Osp(2|2)] superalgebra. We study the reflection equation and find two classes of diagonal solutions. The corresponding one-dimensional open Hamiltonians are diagonalized by means of the Bethe ansatz approach.

متن کامل

ar X iv : h ep - t h / 97 07 07 4 v 1 8 J ul 1 99 7 From Fusion Hierarchy to Excited State TBA

Functional relations among the fusion hierarchy of quantum transfer matrices give a novel derivation of the TBA equations, namely without string hypothesis. This is demonstrated for two important models of 1D highly correlated electron systems, the supersymmetric t − J model and the supersymmetric extended Hubbard model. As a consequence, " the excited state TBA " equations, which characterize ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1993