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Bulk fault-tolerant quantum information processing with boundary addressability

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Bulk fault-tolerant quantum information processing with boundary addressability
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48
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CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
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A globally controlled architecture for a quantum computer is highly appealing as one does not then require the technological capability of addressing each and every qubit within the device. Although several fully global controlled designs for a universal quantum computer have been proposed in the literature - and although it has been proven that a fully global fault tolerant (FT) quantum error correction scheme is possible in principle, no actual scheme for the latter has yet been advanced. In this work we go part way towards the latter and present a fault-tolerant semi-global control strategy for universal quantum computers. We show that an N-dimensional array of qubits where only (N − 1)-dimensional addressing resolution is available is compatible with FT universal quantum computation. What is more, we show that measurements and individual control of qubits are required only at the boundaries of the FT computer. Our model alleviates the heavy physical conditions on current qubit candidates imposed by addressability requirements and represents an option for improving their scalability.
Process (computing)InformationThermodynamisches SystemQuantum computerQuantum information scienceSelf-organizationFault-tolerant systemMereologyThermodynamisches SystemAddress spaceLecture/Conference
Thermodynamisches SystemThresholding (image processing)UsabilityData recoveryQuantum computerPlanningFault-tolerant systemFehlererkennungData recoveryAddress spaceMeasurementComputer architectureRevision controlQuantum computerClassical physicsFeedbackError messageComputer animation
Digital electronicsType theoryComputer architectureArchitectureGame controllerDifferent (Kate Ryan album)QubitBusiness modelQuantum computerComputer animation
Control flowChainQuantum computerQuantum computerGame controllerQubitTerm (mathematics)Real numberLevel (video gaming)Type theoryCellular automatonComputer animation
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Numbering schemeLogicMultiplication signControl engineeringAddress spaceNumbering schemeQubitOperator (mathematics)BitQuantum computerMeasurementData recoveryIntegerDigital electronicsComputer architectureInternet der DingeSlide ruleComputerDivisorComputer animation
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Transcript: English(auto-generated)