With the research alliance of TU Braunschweig and Leibniz Universität Hannover researchers of both Universities intensified their cooperation in the strategic research area QUANOMET – Quantum- and Nanometrology. In close collaboration with Physikalisch-Technische Bundesanstalt (PTB) Braunschweig, this resulted in the joint excellence cluster proposal QuantumFrontiers – Light and Matter at the Quantum Frontier: Foundations and Applications in Metrology, which has recently been elected for the final round of the German Excellence Strategy research funding program.