88 citations · 320 across the 7 of their papers we have counts for
8 papers
Magnetism and superconductivity of strongly correlated electrons on the triangular lattice
Cédric Weber, Andreas Laeuchli, Frédéric Mila +1
We investigate the phase diagram of the \tj Model on a triangular lattice using a Variational Monte-Carlo approach. We use an extended set of Gutzwiller projected fermionic trial w…
Frustrated three-leg spin tubes: from spin 1/2 with chirality to spin 3/2
J. -B. Fouet, A. Laeuchli, S. Pilgram +2
Motivated by the recent discovery of the spin tube [(CuCltachH)Cl]Cl, we investigate the properties of a frustrated three-leg spin tube with antiferromagnetic intra-rin…
Spinon deconfinement in doped frustrated quantum antiferromagnets
Didier Poilblanc, Andreas Laeuchli, Matthieu Mambrini +1
The confinement of a spinon liberated by doping two-dimensional frustrated quantum antiferromagnets with a non-magnetic impurity or a mobile hole is investigated. For a static vaca…
Effect of local charge fluctuations on spin physics in the Neel state of LaCuO
Luca Capriotti, Andreas Laeuchli, Arun Paramekanti
We explore the effect of local charge fluctuations on the spin response of a Mott insulator by deriving an effective spin model, and studying it using Schwinger boson mean field th…
Numerical Contractor Renormalization Method for Quantum Spin Models
Sylvain Capponi, Andreas Laeuchli, Matthieu Mambrini
We demonstrate the utility of the numerical Contractor Renormalization (CORE) method for quantum spin systems by studying one and two dimensional model cases. Our approach consists…
Inhomogeneously doped two-leg ladder systems
Stefan Wessel, Martin Indergand, Andreas Laeuchli +2
A chemical potential difference between the legs of a two-leg ladder is found to be harmful for Cooper pairing. The instability of superconductivity in such systems is analyzed by…