Parallel Information Transfer in a Multinode Quantum Information Processor
Name
Borneman-2012-Parallel Information Transfer in a Multinode Quantum Information Processor.pdf
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565.71 KB
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Author(s)
Borneman, Troy William
Granade, Christopher E.
Cory, David G.
Date Issued
April 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Borneman, T., C. Granade, and D. Cory. “Parallel Information Transfer in a Multinode Quantum Information Processor.” Physical Review Letters 108.14 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We describe a method for coupling disjoint quantum bits (qubits) in different local processing nodes of a distributed node quantum information processor. An effective channel for information transfer between nodes is obtained by moving the system into an interaction frame where all pairs of cross-node qubits are effectively coupled via an exchange interaction between actuator elements of each node. All control is achieved via actuator-only modulation, leading to fast implementations of a universal set of internode quantum gates. The method is expected to be nearly independent of actuator decoherence and may be made insensitive to experimental variations of system parameters by appropriate design of control sequences. We show, in particular, how the induced cross-node coupling channel may be used to swap the complete quantum states of the local processors in parallel.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.108.140502
