46 citations · 82 across the 3 of their papers we have counts for
4 papers
Two Step Restoration of SU(2) Symmetry in a Frustrated Ring-Exchange Magnet
A. Laeuchli, J. C. Domenge, C. Lhuillier +2
We demonstrate the existence of a spin-nematic, moment-free phase in a quantum four-spin ring exchange model on the square lattice. This unusual quantum state is created by the int…
Spin-Charge Separation in Two-dimensional Frustrated Quantum Magnets
A. Laeuchli, D. Poilblanc
The dynamics of a mobile hole in two-dimensional frustrated quantum magnets is investigated by exact diagonalization techniques. Our results provide evidence for spin-charge separa…
d-Mott phases in one and two dimensions
A. Laeuchli, C. Honerkamp, T. M. Rice
We use exact diagonalization to determine the spectrum of reduced Hamiltonians based on renormalization group flows to strong coupling. For the half-filled two-leg Hubbard ladder w…
Li Induced Spin and Charge Excitations in a Spin Ladder
Andreas Laeuchli, Didier Poilblanc, T. M. Rice +1
A lithium dopant in a cuprate spin ladder acts as a vacant (non-magnetic) site accompanied by an extra hole bound by a Coulomb potential. We find that, although the undoped ladder…