78 citations · 292 across the 17 of their papers we have counts for
3 papers · 1 filter
Pseudoparticle-operator description of an interacting Bose gas
A. H. Castro Neto, H. Q. Lin, H. -Y Chen +1
We write the Hamiltonian of the Bose gas with two-body repulsive -function potential in a pseudoparticle operator basis which diagonalizes the problem via the Bethe ansatz. In t…
Conservation laws and bosonization in integrable Luttinger liquids
J. M. P. Carmelo, A. H. Castro Neto, D. K. Campbell
We examine and explain the Luttinger-liquid character of models solvable by the Bethe ansatz by introducing a suitable bosonic operator algebra. In the case of the Hubbard chain, t…
New perturbation theory of low-dimensional quantum liquids II: operator description of Virasoro algebras in integrable systems
J. M. P. Carmelo, A. H. Castro Neto, D. K. Campbell
We show that the recently developed {\it pseudoparticle operator algebra} which generates the low-energy Hamiltonian eigenstates of multicomponent integrable systems also provides…