284 citations · 7.7k across the 190 of their papers we have counts for
6 papers · 2 filters
Semiclassical approach to ground-state properties of hard-core bosons in two dimensions
Tommaso Coletta, Nicolas Laflorencie, Frédéric Mila
Motivated by some inconsistencies in the way quantum fluctuations are included beyond the classical treatment of hard-core bosons on a lattice in the recent literature, we revisit…
Three-sublattice order in the SU(3) Heisenberg model on the square and triangular lattice
Bela Bauer, Philippe Corboz, Andreas M. Läuchli +4
We present a numerical study of the SU(3) Heisenberg model of three-flavor fermions on the triangular and square lattice by means of the density-matrix renormalization group (DMRG)…
Antiferromagnetic spin-S chains with exactly dimerized ground states
Frédéric Michaud, François Vernay, Salvatore R. Manmana +1
We show that spin S Heisenberg spin chains with an additional three-body interaction of the form (S_{i-1}S_{i})(S_{i}S_{i+1})+h.c. possess fully dimerized ground states if the rati…
Competition between two- and three-sublattice ordering for S=1 spins on the square lattice
Tamas A. Toth, Andreas M. Laeuchli, Frederic Mila +1
We provide strong evidence that the S=1 bilinear-biquadratic Heisenberg model with nearest-neighbor interactions on the square lattice possesses an extended three-sublattice phase…
Theory of inelastic light scattering in spin-1 systems: resonant regimes and detection of quadrupolar order
Frédéric Michaud, François Vernay, Frédéric Mila
Motivated by the lack of an obvious spectroscopic probe to investigate non-conventional order such as quadrupolar orders in spin S>1/2 systems, we present a theoretical approach to…
Simultaneous dimerization and SU(4) symmetry breaking of 4-color fermions on the square lattice
Philippe Corboz, Andreas M. Laeuchli, Karlo Penc +2
Using infinite projected entangled pair states (iPEPS), exact diagonalization, and flavor-wave theory, we show that the SU(4) Heisenberg model undergoes a spontaneous dimerization…