Uniqueness of the infinite connected component for the vacant set of random interlacements on amenable transient graphs

We prove the uniqueness of the infinite connected component for the vacant set of random interlacements on general vertex-transitive amenable transient graphs. Our approach is based on connectedness of random interlacements and differs from the one used by Teixera arXiv:0805.4106 to prove the uniqueness of the infinite connected component for the vacant set of random interlacements on ${\mathbb{Z}}^d$.