JARA-Institute Quantum Information (PGI-11)

Our institute pursues a diverse set of topics that further our theoretical understanding of electronic systems and devices at nano- and atomic scales, and the application of these small quantum systems to new forms of information processing.

Institute Heads: Prof. Dr. David DiVincenzo, Prof. Dr. Hendrik Bluhm

News and Events

Hofstadter's butterfly

Blueprint for fault-tolerant qubits

Building a universal quantum computer is a challenging task because of the fragility of quantum bits, or qubits for short. Researchers led by Prof. David DiVincenzo have now proposed a design for a circuit with passive error correction. Such a circuit would already be inherently fault protected and could significantly accelerate the construction of a quantum computer with a large number of qubits.


PGI Colloquium: Prof. Dr. Chris Leighton, University of Minnesota, Minneapolis, USA

Recently, incorporation of electrolytes (e.g., ionic liquids) into field-effect transistors has been shown to enable electric double layer transistors, which can induce large (1015 cm-2) carrier densities at surfaces. These correspond to substantial fractions of an electron or hole per unit cell in most materials, sufficient to electrically control electronic phase transitions.

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New Approaches in Information Technology

In the research alliance JARA, section JARA-FIT, we contribute to creating the basis for the information technology of the future.