Finite temperature spectral function of Mott insulators and charge density wave states.
Phys Rev Lett 90:12 (2003) 126401
Abstract:
We calculate the low-temperature spectral function of one-dimensional incommensurate charge density wave states and half filled Mott insulators. At T=0 there are two dispersing features associated with the spin and charge degrees of freedom, respectively. We show that already at very low temperatures (compared to the gap) one of these features gets severely damped. We comment on implications of this result for photoemission experiments.Lattice models with N = 2 supersymmetry
Physical Review Letters 90:12 (2003)
Abstract:
Lattice models with N = 2 supersymmetry are introduced. It is shown that the continuum limit of the simplest of these models is a well known (1 + 1)-dimensional quantum field theory with N = (2,2) superconformal symmetry. The close connections with models of current interest in the study of strongly correlated electrons is noted. Furthermore, it is demonstrated how supersymmetry can be useful in studying their properties.Dynamical structure factor of the anisotropic Heisenberg chain in a transverse field
(2003)
Droplet Spreading on Heterogeneous Surfaces using a Three-Dimensional Lattice Boltzmann Model
(2003)