4 papers
Ground-state Entropy of the Ising model on a Frustrated lattice
B Sriram Shastry, Bill Sutherland, Frédéric Mila +1
We report the ground-state entropy of a 2-d Ising model on the Shastry-Sutherland lattice. We also study a generalization of this model, where a constraint on the zero temperature…
Non-linear spin wave theory in the strong easy-axis limit of the triangular XXZ model
Achille Mauri, Siebe Roose, Frédéric Mila
Motivated by recent experimental studies, we investigate the spectrum of the nearest-neighbour triangular XXZ model within the expansion, in the limit in which the exchange c…
Thermal Phase Diagram of the Square Lattice Ferro-antiferromagnetic Heisenberg Model
Olivier Gauthé, Frédéric Mila
Using state of the art tensor network computations combined with spin wave theory, we compute the finite temperature phase diagram of the spin 1/2 Heisenberg model on the…
Primary and Secondary Order Parameters in the Fully Frustrated Transverse Field Ising Model on the Square Lattice
Gabe Schumm, Hui Shao, Wenan Guo +2
Using quantum Monte Carlo simulations and field-theory arguments, we study the fully frustrated (Villain) transverse-field Ising model on the square lattice. We consider a "primary…