Iterative quantum-state transfer along a chain of nuclear spin qubits

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dc.contributor.authorSuter, Dieter
dc.contributor.authorZhang, Jingfu
dc.contributor.authorRajendran, Nageswaran
dc.contributor.authorPeng, Xinhua
dc.date.accessioned2008-06-02T12:38:52Z
dc.date.available2008-06-02T12:38:52Z
dc.date.issued2007-07-17
dc.description.abstractTransferring quantum information between two qubits is a basic requirement for many applications in quantum communication and quantum-information processing. In the iterative quantum-state transfer proposed by Burgarth et al. [Phys. Rev. A 75, 062327 (2007)], this is achieved by a static spin chain and a sequence of gate operations applied only to the receiving end of the chain. The only requirement on the spin chain is that it transfers a finite part of the input amplitude to the end of the chain, where the gate operations accumulate the information. For an appropriate sequence of evolutions and gate operations, the fidelity of the transfer can asymptotically approach unity. We demonstrate the principle of operation of this transfer scheme by implementing it in a nuclear magnetic resonance quantum-information processor.en
dc.identifier.citationZhan, J.; Rajendran, N.; Peng, X.; Suter, D.: Iterative quantum-state transfer along a chain of nuclear spin qubits. In. Physical Review A Jg. 76(2007), 012317.de
dc.identifier.doi10.1103/PhysRevA.76.012317
dc.identifier.urihttp://hdl.handle.net/2003/25403
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3070
dc.identifier.urlhttp://dx.doi.org/10.1103/PhysRevA.76.012317
dc.language.isoende
dc.publisherThe American Physical Societyen
dc.rights©2007 The American Physical Societyen
dc.subject.ddc530
dc.titleIterative quantum-state transfer along a chain of nuclear spin qubitsen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted
eldorado.identifier.urlhttp://e3.physik.tu-dortmund.de/~suter/eprints/Iterative_QST.pdf

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