Quantum geometry of field extensions

Abstract

We show that noncommutative differential forms on $k[x]$, $k$ a field, are of the form $Ω^1=k_λ[x]$ where $k_λ\supset k$ is a field extension. We compute the case $C\supset R$ explicitly, where $Ω^1$ is 2-dimensional. We study the induced quantum de Rahm complex, its cohomology and the associated moduli space of flat connections.