A quantum code in decoherence-free and interaction-free subspaces

Details A quantum code in decoherence-free and interaction-free subspaces A quantum code in decoherence-free and interaction-free subspaces

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003joptb...5..309z&link_type=abstract

Journal of Optics B: Quantum and Semiclassical Optics, Volume 5, Issue 3, pp. 309-312 (2003).

Physics

Optics

1

Scientific paper

A quantum code based on decoherence-free subspace is considered. We investigate a special interaction - exchange interaction in the quantum system - and show that quantum states encoded by the quantum code are free of the exchange interaction. On the basis of this quantum code, universal quantum computation can be implemented by switching 'off and on' exchange interaction.

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