2 papers
cond-mat.str-el1997
Charge and Spin Currents of the 1D Hubbard Model at Finite Energy
N. M. R. Peres, P. D. Sacramento, J. C. Carmelo
The transport of charge and spin at finite energies is studied for the Hubbard chain in a magnetic field by means of the pseudoparticle perturbation theory. In the general case, th…
cond-mat1996
Complete Pseudoparticle Representation and the Conductivity Spectrum of the Hubbard Chain
J. M. P. Carmelo, N. M. R. Peres, D. K. Campbell
We use a complete pseudoparticle operator representation to study the explicit form of the finite-frequency conductivity for the Hubbard chain. Our study reveals that the spectral…