Physics Experts

Woowon Kang

James Franck Institute
United States of America


In recent years, my group has been pursuing research on the fractional quantum Hall effect in connection to topological quantum computation. Topological quantum computing is a fascinating interplay of topology, quantum field theory, physics of fractional quantum Hall effect, and theories of quantum computing. The fractional quantum Hall effect is presently the most promising platform among various candidate systems for a topological quantum computer. The global topological protection afforded by the fractional quantum Hall effect produces fault tolerance in a topological quantum computer. A topological quantum computer consequently becomes immune to the effects of local quantum decoherence. A fault-tolerant qubit can be constructed by taking advantage of the non-Abelian braiding statistics of elementary excitations (called anyons), which are thought to exist in certain exotic fractional quantum Hall states. Experimental goals include detection and manipulations of the postulated non-Abelian anyons in quantum interferometers that are constructed from high-quality semiconductor heterostructures. Topics: Quantum Hall Effect, Organic Superconductors

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