Welcome to the homepage of the Geometry and Quantum Theory (GQT) cluster.

GQT is a national Dutch mathematical research cluster funded by the Dutch Research Council NWO and the Universities of Amsterdam, Utrecht and Nijmegen.

We are currently witnessing a new episode of close contact at the frontiers of pure mathematics and fundamental physics, in which the autonomous development of geometry as a branch of pure mathematics is enriched by a remarkable flow of ideas from fundamental physics, notably quantum theory. The cluster supports research at the interface between mathematics and theoretical physics. An important secondary effect of the cluster will undoubtedly be the enhancement of the opposite flow as well. The present proposal focuses on the interplay between geometry, including algebraic, symplectic, and noncommutative geometry, and quantum theory, incorporating quantum field theory, string theory, and quantization.