001     139683
005     20240625095038.0
024 7 _ |a 10.1103/PhysRevB.87.195309
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024 7 _ |a 0163-1829
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024 7 _ |a 1095-3795
|2 ISSN
024 7 _ |a 1550-235X
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024 7 _ |a 0556-2805
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024 7 _ |a 1098-0121
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024 7 _ |a arXiv:1211.0417
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024 7 _ |a WOS:000319252200005
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024 7 _ |a 2128/5596
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037 _ _ |a FZJ-2013-05657
082 _ _ |a 530
100 1 _ |a Mehl, Sebastian
|0 P:(DE-Juel1)145051
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|e Corresponding author
|u fzj
245 _ _ |a Noise analysis of qubits implemented in triple quantum dot systems in a Davies master equation approach
260 _ _ |a College Park, Md.
|c 2013
|b APS
336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a article
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500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a 30 pages, 18 figures
520 _ _ |a We analyze the influence of noise for qubits implemented using a triple quantum dot spin system. We give a detailed description of the physical realization and develop error models for the dominant external noise sources. We use a Davies master equation approach to describe their influence on the qubit. The triple dot system contains two meaningful realizations of a qubit: We consider a subspace and a subsystem of the full Hilbert space to implement the qubit. We test the robustness of these two implementations with respect to the qubit stability. When performing the noise analysis, we extract the initial time evolution of the qubit using a Nakajima-Zwanzig approach. We find that the initial time evolution, which is essential for qubit applications, decouples from the long time dynamics of the system. We extract probabilities for the qubit errors of dephasing, relaxation and leakage. Using the Davies model to describe the environment simplifies the noise analysis. It allows us to construct simple toy models, which closely describe the error probabilities.
536 _ _ |a 422 - Spin-based and quantum information (POF2-422)
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542 _ _ |i 2013-05-20
|2 Crossref
|u http://link.aps.org/licenses/aps-default-license
588 _ _ |a Dataset connected to arXivarXiv, CrossRef, juser.fz-juelich.de
700 1 _ |a DiVincenzo, David
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773 1 8 |a 10.1103/physrevb.87.195309
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|t Physical Review B
|v 87
|y 2013
|x 1098-0121
773 _ _ |a 10.1103/PhysRevB.87.195309
|g Vol. 87, no. 19, p. 195309
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|t Physical review / B
|v 87
|y 2013
|x 1098-0121
856 4 _ |y Publishers version according to licensing conditions.
|z Published final document.
856 4 _ |u https://juser.fz-juelich.de/record/139683/files/FZJ-2013-05657.pdf
|y OpenAccess
|z Published final document.
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910 1 _ |a Forschungszentrum Jülich GmbH
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913 2 _ |a DE-HGF
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|v Spin-based and quantum information
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914 1 _ |y 2013
915 _ _ |a American Physical Society Transfer of Copyright Ag
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915 _ _ |a JCR/ISI refereed
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