Reduced Decoherence in Large Quantum Registers

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dc.contributor.authorSuter, Dieter
dc.contributor.authorKrojanski, Hans G.
dc.date.accessioned2008-06-02T10:50:20Z
dc.date.available2008-06-02T10:50:20Z
dc.date.issued2006-10-11
dc.description.abstractAmong the biggest obstacles for building larger (and thus more powerful) quantum-information processors is decoherence, the decay of quantum-information by the coupling between the quantum register and its environment. Procedures for reducing decoherence processes will be essential for successful operation of larger quantum processors. We study model quantum registers consisting of up to 4900 qubits and measure their decay as a function of the register size. We demonstrate that appropriate sequences of qubit rotations reduce the coupling between system and environment for all sizes of the quantum register, thus preserving the quantum-information 50 times longer than without decoupling.en
dc.identifier.citationKrojanski, Hans G.; Suter, Dieter: Reduced Decoherence in Large Quantum Registers. In: Physical Review Letters Jg. 97(2006), 150503.de
dc.identifier.doi10.1103/PhysRevLett.97.150503
dc.identifier.urihttp://hdl.handle.net/2003/25394
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-2761
dc.identifier.urlhttp://dx.doi.org/10.1103/PhysRevLett.97.150503
dc.language.isoende
dc.publisherThe American Physical Societyen
dc.rights©2006 The American Physical Societyen
dc.subject.ddc530
dc.titleReduced Decoherence in Large Quantum Registersen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted
eldorado.identifier.urlhttp://e3.physik.tu-dortmund.de/~suter/eprints/Reduced_decoherence.pdf

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