4 citations · 11 across the 4 of their papers we have counts for
4 papers
A model with simultaneous first and second order phase transitions
Alain Messager, Bruno Nachtergaele
We introduce a two dimensional nonlinear XY model with a second order phase transition driven by spin waves, together with a first order phase transition in the bond variables betw…
Interface states of quantum spin systems
Alain Messager, Bruno Nachtergaele
We review recent results as well as ongoing work and open problems concerning interface states in quantum spin systems at zero and finite temperature.
Rigidity of interfaces in the Falicov-Kimball model
Nilanjana Datta, Alain Messager, Bruno Nachtergaele
We analyze the thermodynamic properties of interfaces in the three-dimensional Falicov Kimball model, which can be viewed as a primitive quantum lattice model of crystalline matter…
Ground States and Flux Configurations of the Two-dimensional Falicov-Kimball Model
Ch. Gruber, N. Macris, A. Messager +1
The Falicov-Kimball model is a lattice model of itinerant spinless fermions ("electrons") interacting by an on-site potential with classical particles ("ions"). We continue the inv…