%0 Journal Article %T On ASEP with Step Bernoulli Initial Condition %A Craig A. Tracy %A Harold Widom %J Mathematics %D 2009 %I arXiv %R 10.1007/s10955-009-9867-1 %X This paper extends results of earlier work on ASEP to the case of step Bernoulli initial condition. The main results are a representation in terms of a Fredholm determinant for the probability distribution of a fixed particle, and asymptotic results which in particular establish KPZ universality for this probability in one regime. (And, as a corollary, for the current fluctuations.) %U http://arxiv.org/abs/0907.5192v2