Tomography scheme for two spin-1/2 qubits in a double quantum do

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dc.contributor.authorRohling, Niklas
dc.contributor.authorBurkard, Guido
dc.date.accessioned2014-02-21T11:52:01Zdeu
dc.date.available2014-02-21T11:52:01Zdeu
dc.date.issued2013
dc.description.abstractWe present a scheme for full quantum state tomography tailored for two spin qubits in a double quantum dot. A set of 15 quantum states allows to determine the density matrix in this two-qubit space by projective measurement. In this paper, we choose a set gained from mutually unbiased bases. We determine how those 15 projections can be represented by charge measurements after a spin-to-charge conversion and the application of quantum gates. The quantum gates include exchange-based gates as well as rotations by electron spin resonance (ESR). We assume the experimental realization of ESR operations to be more difficult than the exchange gate operation with respect to fidelity and speed. Therefore it is an important result that the ESR gates can be limited to a π/2 rotation for one of the electron spins per measurement.eng
dc.description.versionpublished
dc.identifier.citationPhysical Review B ; 88 (2013), 8. - 085402deu
dc.identifier.doi10.1103/PhysRevB.88.085402deu
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/26522
dc.language.isoengdeu
dc.legacy.dateIssued2014-02-21deu
dc.rightsterms-of-usedeu
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/deu
dc.subject.ddc530deu
dc.titleTomography scheme for two spin-1/2 qubits in a double quantum doeng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
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@article{Rohling2013Tomog-26522,
  year={2013},
  doi={10.1103/PhysRevB.88.085402},
  title={Tomography scheme for two spin-1/2 qubits in a double quantum do},
  number={8},
  volume={88},
  issn={1098-0121},
  journal={Physical Review B},
  author={Rohling, Niklas and Burkard, Guido}
}
kops.citation.iso690ROHLING, Niklas, Guido BURKARD, 2013. Tomography scheme for two spin-1/2 qubits in a double quantum do. In: Physical Review B. 2013, 88(8). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.88.085402deu
kops.citation.iso690ROHLING, Niklas, Guido BURKARD, 2013. Tomography scheme for two spin-1/2 qubits in a double quantum do. In: Physical Review B. 2013, 88(8). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.88.085402eng
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kops.sourcefieldPhysical Review B. 2013, <b>88</b>(8). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.88.085402deu
kops.sourcefield.plainPhysical Review B. 2013, 88(8). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.88.085402deu
kops.sourcefield.plainPhysical Review B. 2013, 88(8). ISSN 1098-0121. eISSN 1550-235X. Available under: doi: 10.1103/PhysRevB.88.085402eng
kops.submitter.emailchristoph.petzmann@uni-konstanz.dedeu
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source.bibliographicInfo.issue8
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source.periodicalTitlePhysical Review B

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