Theoretical Nanoelectronics

The quantum mechanical nature of matter is the basis of all functioning of electronic devices. We use techniques from many-body physics, from quantum statistical physics, and from the mathematics of topology, to analyze the properties of electrons in a wide range of present-day exploratory devices. Our work can enable the development of new qubits, and new approaches to building a quantum computer.

Director: Prof. Dr. David DiVincenzo

News and Events

Error-free quantum computer is coming closer

Quantum computers are expected to be the computers of the future. However, today's systems are still too error-prone for practical use. In two publications in the current issue of the renowned scientific journal Nature, a team around Prof. Markus Müller from Forschungszentrum Jülich and RWTH Aachen University has now presented two new solutions, which are intended to protect the results from errors. In collaboration with researchers from Switzerland, Germany and Canada, they were involved in the implementation of a superconducting quantum computer chip that allows one to correct both fundamental types of errors affecting quantum systems.

PGI Colloquium: Prof. Dr. Silvia Viola Kusminskiy, Max Planck Institute for the Science of Light, Erlangen & RWTH Aachen University, Aachen, Germany

In the last few years, a new field has emerged at the intersection between Condensed Matter and Quantum Optics, denominated “Quantum Magnonics”. This field strives to control the elementary excitations of magnetic materials, denominated magnons, to the level of the single quanta, and to interface them coherently to other elementary excitations such as photons or phonons. The recent developments in this field, with proof-of-concept experiments such as a single-magnon detector, have opened the door for hybrid quantum systems based on magnetic materials.

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