Feedback control for quantum information processing (A11*)

• Subject Area: Theoretical Condensed Matter Physics
• Term: from 2019 to 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 163436311

Maintaining coherence in the face of interactions with the environment is essential for reliably manipulating quantum states and thus quantum information processing. One prominent strategy towards this goal relies on the measurement of error syndromes and subsequent active quantum error correction. Such error correcting codes typically rely on projective syndrome readout. In practice, such projective measurements may be too difficult or too time consuming. In this project, we explore feedback-based strategies towards this goal which use weak rather than projective measurements, with a focus on topological quantum computation and the underlying adiabatic quantum dynamics.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 910: Control of Self-Organising Non-Linear Systems: Theoretical Methods and Concepts of Application
• Applicant Institution: Technische Universität Berlin
• Project Head: Professor Dr. Felix von Oppen