%0 Journal Article %T Smooth one-dimensional topological field theories are vector bundles with connection %A Daniel Berwick-Evans %A Dmitri Pavlov %J Mathematics %D 2015 %I arXiv %X We prove that smooth 1-dimensional topological field theories over a manifold are the same as vector bundles with connection. The main novelty is our definition of the smooth 1-dimensional bordism category, which encodes cutting laws rather than gluing laws. We make this idea precise through a smooth generalization of Rezk's complete Segal spaces. With such a definition in hand, we analyze the category of field theories using a combination of descent, a smooth version of the 1-dimensional cobordism hypothesis, and standard differential geometric arguments. %U http://arxiv.org/abs/1501.00967v1