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Geometric Effects and Computation in Spin Networks
Centre for Quantum Computation, DAMTP, Univ. of Cambridge, UK.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry.
2005 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 7, 143- p.Article in journal (Refereed) Published
Abstract [en]

When initially introduced, a Hamiltonian that realises perfect transfer of a quantum state was found to be analogous to an x-rotation of a large spin. In this paper we extend the analogy further to demonstrate geometric effects by performing rotations on the spin. Such effects can be used to determine properties of the chain, such as its length, in a robust manner. Alternatively, they can form the basis of a spin network quantum computer. We demonstrate a universal set of gates in such a system by both dynamical and geometrical means.

Place, publisher, year, edition, pages
2005. Vol. 7, 143- p.
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-151358DOI: 10.1088/1367-2630/7/1/143OAI: oai:DiVA.org:uu-151358DiVA: diva2:409645
Note
Additional address (M. Ericsson): Centre for Quantum Computation, DAMTP, Univ. of Cambridge, UKAvailable from: 2011-04-10 Created: 2011-04-10 Last updated: 2017-12-11Bibliographically approved

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Ericsson, Marie

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