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Spectral properties of Luther-Emery systems
Johannes Voit
We calculate the spectral function of the Luther-Emery model which describes one-dimensional fermions with gapless charge and gapped spin degrees of freedom. We find a true singula…
Exact Boundary Critical Exponents and Tunneling Effect in Integrable Models for Quantum Wires
Y. Wang, J. Voit, F. -C. Pu
Using the principles of the conformal quantum field theory and the finite size corrections of the energy of the ground and various excited states, we calculate the boundary critica…
One-Dimensional Fermi liquids
Johannes Voit
I attempt to give a pedagogical overview of the progress which has occurred during the past decade in the description of one-dimensional correlated fermions. Fermi liquid theory ba…
Exact numerical diagonalization of one-dimensional interacting electrons nonadiabatically coupled to phonons
G. P. Borghi, A. Girlando, A. Painelli +1
We study the role of non-adiabatic Holstein electron-phonon coupling on the neutral-ionic phase transition of charge transfer crystals which can be tuned from continuous to discont…
Charge-Spin Separation and the Spectral Properties of Luttinger Liquids
Johannes Voit
We compute the spectral function rho(q,omega) of the one- dimensional Luttinger model. We discuss the distinct influences of charge-spin separation and of the anomalous dimensions…