An invariance principle to Ferrari-Spohn diffusions
arXiv:1403.5073 · doi:10.1007/s00220-014-2277-5
Abstract
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.
Final version to appear in Communications in Mathematical Physics (includes minor updates done at proofreading stage)
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Cited by in corpus (16)
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