Personne
Frédéric Mila
Publications associées (170)
Commensurate-incommensurate transition in the chiral Ashkin-Teller model
Frédéric Mila, Samuel Louis Nyckees
We investigate the classical chiral Ashkin-Teller model on a square lattice with the corner transfer matrix renormalization group algorithm. We show that the melting of the period-4 phase in the presence of a chiral perturbation takes different forms depen ...
AMER PHYSICAL SOC2022Possibility to detect the bound state of the Heisenberg ferromagnetic chain at intermediate temperature
Frédéric Mila, Mithilesh Nayak
Motivated by the lack of direct evidence with inelastic neutron scattering of the well documented bound state of Heisenberg ferromagnets, we use the time-dependent thermal density matrix renormalization group algorithm to study the temperature dependence o ...
AMER PHYSICAL SOC2022From SU(2)5 to SU(2)3 Wess-Zumino-Witten transitions in a frustrated spin-52 chain
Frédéric Mila, Natalia Chepiga
We investigate the properties of a frustrated spin-5/2 chain with next-nearest-neighbor two- and three-site interactions, with two questions in mind: the nature of the transition into the dimerized phase induced by the three-site interaction, and the possi ...
AMER PHYSICAL SOC2022Thermal Ising Transition in the Spin-1/2 J(1)-J(2) Heisenberg Model
Frédéric Mila, Olivier Clément Romain Gauthé
Using an SU(2) invariant finite-temperature tensor network algorithm, we provide strong numerical evidence in favor of an Ising transition in the collinear phase of the spin-1/2 J(1)-J(2) Heisenberg model on the square lattice. In units of J(2), the critic ...
AMER PHYSICAL SOC2022Investigating field-induced magnetic order in Han purple by neutron scattering up to 25.9 T
Frédéric Mila, Bruce Normand, Philippe Heller, Nicolas Laflorencie
BaCuSi2O6 is a quasi-two-dimensional (2D) quantum antiferromagnet containing three different types of stacked, square-lattice bilayer hosting spin-1/2 dimers. Although this compound has been studied extensively over the last two decades, the critical appli ...
AMER PHYSICAL SOC2022Conformal and chiral phase transitions in Rydberg chains
Frédéric Mila, Natalia Chepiga, Ivo Aguiar Maceira
Using density matrix renormalization group simulations on open chains, we map out the wave vector in the incommensurate disordered phase of a realistic model of Rydberg chains with 1/r6 interactions, and we locate and characterize the points along the comm ...
AMER PHYSICAL SOC2022Thermal critical points from competing singlet formations in fully frustrated bilayer antiferromagnets
Frédéric Mila, Antoine Yves Dimitri Fache
We examine the ground-state phase diagram and thermal phase transitions in a plaquettized fully frustrated bilayer spin-1/2 Heisenberg model. Based on a combined analysis from sign-problem free quantum Monte Carlo simulations, perturbation theory, and free ...
AMER PHYSICAL SOC2022Tensor network investigation of the hard-square model
Frédéric Mila, Samuel Louis Nyckees
Using the corner-transfer matrix renormalization group to contract the tensor network that describes its partition function, we investigate the nature of the phase transitions of the hard-square model, one of the exactly solved models of statistical physic ...
AMER PHYSICAL SOC2022Partial lifting of degeneracy in the J1-J2-J3 Ising antiferromagnet on the kagome lattice
Frédéric Mila, Jeanne Colbois, Andrew James Smerald
Motivated by dipolar-coupled artificial spin systems, we present a theoretical study of the classical J(1)-J(2)-J(3) Ising antiferromagnet on the kagome lattice. We establish the ground-state phase diagram of this model for J(1) > |J(2) |, |J(3) | based on ...
College Pk2022Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small farther-neighbor couplings
Frédéric Mila, Jeanne Colbois, Xueqiao Wang
Despite their simple formulation, short-range classical antiferromagnetic Ising models on frustrated lattices give rise to exotic phases of matter, in particular, due to their macroscopic ground-state degeneracy. Recent experiments on artificial spin syste ...
AMER PHYSICAL SOC2021