Frequency Division Multiplexing Readout and Simultaneous Manipulation of an Array of Flux Qubits

An important desired ingredient of superconducting quantum circuits is a readout scheme whose complexity does not increase with the number of qubits involved in the measurement. Here, we present a readout scheme employing a single microwave line, which enables simultaneous readout of multiple qubits...

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Bibliographic Details
Published in:arXiv.org 2012-07
Main Authors: Jerger, Markus, Poletto, Stefano, Macha, Pascal, Hübner, Uwe, Il'ichev, Evgeni, Ustinov, Alexey V
Format: Article
Language:English
Subjects:
Bandwidths
Circuits
Fiber optic networks
Frequency division multiplexing
Qubits (quantum computing)
Scaling up
Superconductivity
Online Access:Get full text
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Summary:An important desired ingredient of superconducting quantum circuits is a readout scheme whose complexity does not increase with the number of qubits involved in the measurement. Here, we present a readout scheme employing a single microwave line, which enables simultaneous readout of multiple qubits. Consequently, scaling up superconducting qubit circuits is no longer limited by the readout apparatus. Parallel readout of 6 flux qubits using a frequency division multiplexing technique is demonstrated, as well as simultaneous manipulation and time resolved measurement of 3 qubits. We discuss how this technique can be scaled up to read out hundreds of qubits on a chip.
ISSN:2331-8422
DOI:10.48550/arxiv.1205.6375