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Geometric quantum computation
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Quantum Chemistry. Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry. Quantum Chemistry.
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2000 (English)In: Journal of Modern Optics, Vol. 47, 2501- p.Article in journal (Refereed) Published
Abstract [en]

We describe in detail a general strategy for implementing a conditional geometric phase between two spins. Combined with single-spin operations, this simple operation is a universal gate for quantum computation, in that any unitary transformation can be implemented with arbitrary precision using only single-spin operations and conditional phase shifts. Thus quantum geometrical phases can form the basis of any quantum computation. Moreover, as the induced conditional phase depends only on the geometry of the paths executed by the spins it is resilient to certain types of errors and offers the potential of a naturally fault-tolerant way of performing quantum computation.

Place, publisher, year, edition, pages
2000. Vol. 47, 2501- p.
Keyword [en]
Berry phase, NMR, spin echo
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-20976OAI: oai:DiVA.org:uu-20976DiVA: diva2:48749
Available from: 2006-12-14 Created: 2006-12-14 Last updated: 2011-01-14

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