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Quantum computation in noiseless subsystems with fast non-Abelian holonomies
Department of Physics, Shandong University, China.
Centre for Quantum Technologies, NUS, Singapore.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Theoretical Chemistry. (Quantum information theory)
Department of Physics, Shandong University, China.
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2014 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 89, no 4, 042302- p.Article in journal (Refereed) Published
Abstract [en]

Quantum information processing requires a high degree of isolation from the detrimental effects of the environment as well as an extremely precise level of control on the way quantum dynamics unfolds in the information-processing system. In this paper, we show how these two goals can be ideally achieved by hybridizing the concepts of noiseless subsystems and of holonomic quantum computation. An all-geometric universal computation scheme based on non-adiabatic and non-Abelian quantum holonomies embedded in a four-qubit noiseless subsystem for general collective decoherence is proposed. The implementation details of this synergistic scheme along with the analysis of its stability against symmetry-breaking imperfections are presented.

Place, publisher, year, edition, pages
2014. Vol. 89, no 4, 042302- p.
Keyword [en]
Geometric phase, quantum computation, noiseless subsystems, decoherence
National Category
Other Physics Topics
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-204705DOI: 10.1103/PhysRevA.89.042302ISI: 000333694200002OAI: oai:DiVA.org:uu-204705DiVA: diva2:639714
Funder
Swedish Research Council, D0413201
Note

Additional address (JZ, ES, and PZ): Centre for Quantum Technologies, NUS, Singapore

Available from: 2013-08-08 Created: 2013-08-08 Last updated: 2017-12-06Bibliographically approved

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Sjöqvist, Erik

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