Exact Solution of the Discrete (1+1)-dimensional RSOS Model with Field and Surface Interactions

Abstract

We present the solution of a linear Restricted Solid--on--Solid (RSOS) model in a field. Aside from the origins of this model in the context of describing the phase boundary in a magnet, interest also comes from more recent work on the steady state of non-equilibrium models of molecular motors. While similar to a previously solved (non-restricted) SOS model in its physical behaviour, mathematically the solution is more complex. Involving basic hypergeometric functions ${}_3{\varphi }_2$, it introduces a new form of solution to the lexicon of directed lattice path generating functions.

10 pages, 2 figures

Cited by in corpus (5)

• On noise in swap ASAP repeater chains: exact analytics, distributions and tight approximations
• Length and area generating functions for height-restricted Motzkin meanders
• Exact Solution of the Discrete (1+1)-dimensional RSOS Model in a Slit with Field and Wall Interactions
• Statistical mechanics of kinks on a gliding screw dislocation
• Area-width scaling in generalised Motzkin paths