English

Refined Razumov-Stroganov conjectures for open boundaries

Mathematical Physics 2009-11-10 v1 Statistical Mechanics math.MP

Abstract

Recently it has been conjectured that the ground-state of a Markovian Hamiltonian, with one boundary operator, acting in a link pattern space is related to vertically and horizontally symmetric alternating-sign matrices (equivalently fully-packed loop configurations (FPL) on a grid with special boundaries).We extend this conjecture by introducing an arbitrary boundary parameter. We show that the parameter dependent ground state is related to refined vertically symmetric alternating-sign matrices i.e. with prescribed configurations (respectively, prescribed FPL configurations) in the next to central row. We also conjecture a relation between the ground-state of a Markovian Hamiltonian with two boundary operators and arbitrary coefficients and some doubly refined (dependence on two parameters) FPL configurations. Our conjectures might be useful in the study of ground-states of the O(1) and XXZ models, as well as the stationary states of Raise and Peel models.

Keywords

Cite

@article{arxiv.math-ph/0408042,
  title  = {Refined Razumov-Stroganov conjectures for open boundaries},
  author = {Jan de Gier and Vladimir Rittenberg},
  journal= {arXiv preprint arXiv:math-ph/0408042},
  year   = {2009}
}

Comments

11 pages LaTeX, 8 postscript figures