%0 Journal Article
%T An invariance principle to Ferrari-Spohn diffusions
%A Dmitry Ioffe
%A Senya Shlosman
%A Yvan Velenik
%J Mathematics
%D 2014
%I arXiv
%R 10.1007/s00220-014-2277-5
%X We prove an invariance principle for a class of tilted (1+1)-dimensional SOS models or, equivalently, for a class of tilted random walk bridges in Z_+. The limiting objects are stationary reversible ergodic diffusions with drifts given by the logarithmic derivatives of the ground states of associated singular Sturm-Liouville operators. In the case of a linear area tilt, we recover the Ferrari-Spohn diffusion with log-Airy drift, which was derived by Ferrari and Spohn in the context of Brownian motions conditioned to stay above circular and parabolic barriers.
%U http://arxiv.org/abs/1403.5073v3