Publications (22)
Chiral spin liquid on kagome antiferromagnet induced by Dzyaloshinskii-Moriya interaction
Laura Messio, Samuel Bieri, Claire Lhuillier +1
The quantum spin liquid material herbertsmithite is described by an antiferromagnetic Heisenberg model on the kagome lattice with non-negligible Dzyaloshinskii-Moriya interaction~(…
Projective symmetry group classification of chiral spin liquids
Samuel Bieri, Claire Lhuillier, Laura Messio
We present a general review of the projective symmetry group classification of fermionic quantum spin liquids for lattice models of spin . We then introduce a systematic gen…
High temperature series expansions of S = 1/2 Heisenberg spin models: algorithm to include the magnetic field with optimized complexity
Laurent Pierre, Bernard Bernu, Laura Messio
This work presents an algorithm for calculating high temperature series expansions (HTSE) of Heisenberg spin models with spin in the thermodynamic limit. This algorithm acc…
Thermal destruction of chiral order in a two-dimensional model of coupled trihedra
Laura Messio, Jean-Christophe Domenge, Claire Lhuillier +3
We introduce a minimal model describing the physics of classical two-dimensional (2D) frustrated Heisenberg systems, where spins order in a non-planar way at T=0. This model, consi…
Majorana Diagrammatics for Quantum Spin-1/2 Models
Thibault Noblet, Laura Messio, Riccardo Rossi
A diagrammatic formalism for lattices of 1/2 is developed. It is based on an unconstrained mapping between spin and Majorana operators. This allows the use of standard tools of dia…
Exponential decay of pairwise correlation in Gaussian graphical models with an equicorrelational one-dimensional connection pattern
Guillaume Marrelec, Alain Giron, Laura Messio
We consider Gaussian graphical models associated with an equicorrelational and one-dimensional conditional independence graph. We show that pairwise correlation decays exponentiall…
Emergent Potts order in the kagomé Heisenberg model
Vincent Grison, Pascal Viot, Bernard Bernu +1
Motivated by the physical properties of Vesignieite BaCuVO(OH), we study the Heisenberg model on the kagomé lattice, that is proposed to describe this co…
Quantum Monte-Carlo for correlated out-of-equilibrium nanoelectronics devices
Rosario E. V. Profumo, Christoph Groth, Laura Messio +2
We present a simple, general purpose, quantum Monte-Carlo algorithm for out-of-equilibrium interacting nanoelectronics systems. It allows one to systematically compute the expansio…
Derivation of the free energy, entropy and specific heat for planar Ising models: Application to Archimedean lattices and their duals
Laurent Pierre, Bernard Bernu, Laura Messio
The 2d ferromagnetic Ising model was solved by Onsager on the square lattice in 1944, and an explicit expression of the free energy density is presently available for some othe…
Lattice symmetries and regular states in classical frustrated antiferromagnets
Laura Messio, Claire Lhuillier, Grégoire Misguich
We consider some classical and frustrated lattice spin models with global O(3) spin symmetry. There is no general analytical method to find a ground-state if the spin dependence of…
Effect of perturbations on the kagome antiferromagnet at all temperatures
Bernard Bernu, Laurent Pierre, Karim Essafi +1
The ground state of the kagome Heisenberg antiferromagnet is now recognized as a spin liquid, but its precise nature remains unsettled, even if more and more clues point to…
Gapless chiral spin liquid in a kagome Heisenberg model
Samuel Bieri, Laura Messio, Bernard Bernu +1
Motivated by recent experiments on the Heisenberg S=1/2 quantum spin liquid candidate material kapellasite, we classify all possible chiral (time-reversal symmetry breaking) spin l…
Entropy dependence of correlations in one-dimensional SU(N) antiferromagnets
Laura Messio, Frédéric Mila
Motivated by the possibility to load multi-color fermionic atoms in optical lattices, we study the entropy dependence of the properties of the one-dimensional antiferromagnetic SU(…
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)…
Ground-state and thermodynamic properties of the spin- Heisenberg model on the anisotropic triangular lattice
MatÃas G. Gonzalez, Bernard Bernu, Laurent Pierre +1
The spin- triangular lattice antiferromagnetic Heisenberg model has been for a long time the prototypical model of magnetic frustration. However, only very recently this m…
TRIQS: A Toolbox for Research on Interacting Quantum Systems
Olivier Parcollet, Michel Ferrero, Thomas Ayral +4
We present the TRIQS library, a Toolbox for Research on Interacting Quantum Systems. It is an open-source, computational physics library providing a framework for the quick develop…
Time-reversal-symmetry-breaking chiral spin liquids: a projective symmetry group approach of bosonic mean-field theories
Laura Messio, Claire Lhuillier, Grégoire Misguich
Projective symmetry groups (PSG) are the mathematical tools which allow to list and classify mean-field spin liquids (SL) based on a parton construction. The seminal work of Wen an…
Competition between three-sublattice order and superfluidity in the quantum 3-state Potts model of ultracold bosons and fermions on a square optical lattice
Laura Messio, Philippe Corboz, Frédéric Mila
We study a quantum version of the three-state Potts model that includes as special cases the effective models of bosons and fermions on the square lattice in the Mott insulating li…
Turing-like patterns in an asymmetric dynamic Ising model
Mélody Merle, Laura Messio, Julien Mozziconacci
To investigate novel aspects of pattern formation in spin systems, we use a mapping between reactive concentrations in a reaction-diffusion system and spin orientations in a dynami…
Is Herbertsmithite far from an ideal antiferromagnet? Ab-initio answer including in-plane Dzyaloshinskii-Moriya interactions and coupling with extra-plane impurities
Flaurent Heully-Alary, Nadia Ben Amor, Nicolas Suaud +3
Herbertsmithite is known as the archetype of a S=1/2 nearest-neighbor Heisenberg antiferromagnet on the Kagomé lattice, theoretically presumed to be a quantum gapless spin liquid.…
Chiral order emergence driven by quenched disorder
Coraline Letouzé, Pascal Viot, Laura Messio
Quenched disorder can destroy magnetic order, for example when a random field is applied in a 2-dimensional Ising model. Even when an order exists in the presence of quenched disor…
The kagome antiferromagnet: a chiral topological spin liquid ?
Laura Messio, Bernard Bernu, Claire Lhuillier
Inspired by the recent discovery of a new instability towards a chiral phase of the classical Heisenberg model on the kagome lattice, we propose a specific chiral spin liquid that…