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Quantum Error Correction and Fault-Tolerance: From Concepts to Experiments

Seminar

Specialist level

Speaker:

Prof. Markus Müller

Institution:

RWTH Aachen University and Forschungszentrum Jülich, Germany

Location&Place:

Grey Room 2

Abstract:

To date, the construction of a scalable fault-tolerant quantum computer remains a fundamental scientific and technological challenge, due to the influence of unavoidable noise. In this short lecture series, we will introduce basic concepts of quantum error correction and topological codes, which allow one to protect quantum information during storage and processing. We will then present strategies to detect and fight various sources of errors, including the loss of qubits, and we will present new intriguing connections between quantum error correction and classical statistical physics. Finally, we will discuss challenges and perspectives towards the realisation of scalable fault-tolerant quantum computers in state-of-the-art physical platforms. The latter includes recent breakthroughs in the realisation of first fault-tolerant and error-corrected quantum processors based on trapped ions and superconducting qubits.