Excited Random Walk
@article{Benjamini2003ExcitedRW, title={Excited Random Walk}, author={Itai Benjamini and David Bruce Wilson}, journal={Electronic Communications in Probability}, year={2003}, volume={8}, pages={86-92} }
A random walk on $\mathbb{Z}^d$ is excited if the first time it visits a vertex there is a bias in one direction, but on subsequent visits to that vertex the walker picks a neighbor uniformly at random. We show that excited random walk on $\mathbb{Z}^d$ is transient iff $d > 1$.
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