Fundamental gates for a strongly correlated two-electron quantum ring
2010 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 81, no 3, 033303- p.Article in journal (Refereed) Published
We demonstrate that conditional as well as unconditional basic operations which are necessary for universal quantum gates can be performed with almost 100% fidelity within a strongly interacting two-electron quantum ring. Both sets of operations are based on a quantum control algorithm that optimizes a driving electromagnetic pulse for a given quantum gate. The demonstrated transitions occur on a time scale much shorter than typical decoherence times of the system.
Place, publisher, year, edition, pages
American Physical Society , 2010. Vol. 81, no 3, 033303- p.
Quantum logical gates, quantum computing, electronic structure, electromagnetic pulses, quantum ring, low-dimensional, two-dimensional
Condensed Matter Physics Other Physics Topics
Research subject Physics
IdentifiersURN: urn:nbn:se:su:diva-38860DOI: 10.1103/PhysRevB.81.033303ISI: 000274002300011OAI: oai:DiVA.org:su-38860DiVA: diva2:317057