wdlang Messages 306 Reaction score 0 Thread starter Sep 23, 2010 #1 consider a spin 1/2 xxz model is it integrable?
DrDu Science Advisor Messages 6,423 Reaction score 1,004 Sep 27, 2010 #2 See Cambiaggio et al, Nuclear Physics A vol 624 p 157-67 (1997)