Quantum Information - Theory

  Copyright: © F. Haupt  

The theory groups led by Prof. David DiVincenzo, Prof. Fabian Hassler, Prof. Markus Müller, Prof. Mario Berta, and Prof. Barbara Terhal pursue a variety of topics in both practical and fundamental quantum information science.

Solid-state quantum information processing devices, either based on spins or superconductors, are a real possibility for realizing a quantum computer. Majorana qubits might even have greater potential, although they still respresent a very young field of investigation. Our theoretical work aims at finding improved ways for these qubits to function and to work together in a system. This goal motivates very fundamental studies in a set of diverse areas, including many-body physics, the theory of quantum error correction codes, the theory of quantum control, and quantum computational complexity.

Researchers in the theory groups get to work on real-life problems in making quantum computers work, on designing new algorithms for the simulations of many-body quantum systems, and on working out the fundamental properties of quantum entanglement in a noisy world. They are involved in direct collaborations with researchers at the Jülich Research Center, with groups throughout Europe (e.g. Paris, Delft, Gothenburg, Zürich), and with established (e.g. IBM) and start-up organizations elsewhere in the world.