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dc.contributor.authorChu, Shih-I
dc.contributor.authorYang, Chui-Ping
dc.contributor.authorHan, Siyuan
dc.date.accessioned2014-12-02T17:45:13Z
dc.date.available2014-12-02T17:45:13Z
dc.date.issued2002-09-04
dc.identifier.citationYang, Chui-Ping., Chu, Shih-I., Han, Siyuan. "Error-prevention scheme with two pairs of qubits." Phys. Rev. A 66, 034301 – Published 4 September 2002. http://dx.doi.org/10.1103/PhysRevA.66.034301.
dc.identifier.urihttp://hdl.handle.net/1808/15995
dc.descriptionThis is the published version, also available here: http://dx.doi.org/10.1103/PhysRevA.66.034301.
dc.description.abstractA scheme is presented for protecting one-qubit quantum information against decoherence due to a general environment and local exchange interactions. The scheme operates essentially by distributing information over two pairs of qubits and through error-prevention procedures. In the scheme, quantum information is encoded through a decoherence-free subspace for collective phase errors and exchange errors affecting the qubits in pairs; leakage out of the encoding space due to amplitude damping is reduced by quantum Zeno effect. In addition, how to construct decoherence-free states for n-qubit information against phase and exchange errors is discussed.
dc.publisherAmerican Physical Society
dc.titleError-prevention scheme with two pairs of qubits
dc.typeArticle
kusw.kuauthorYang, Chui-Ping
kusw.kuauthorChu, Shih-I
kusw.kuauthorHan, Siyuan
kusw.kudepartmentChemistry
kusw.kudepartmentPhysics and Astronomy
kusw.oastatusna
dc.identifier.doi10.1103/PhysRevA.66.034301
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item does not meet KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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