Tunable XX-Coupling Between High Coherence Flux Qubits
ORAL
Abstract
The first generation of quantum annealers based on Josephson junction technology successfully represent arrays of spins in the quantum transverse-field Ising model. However, to date, no annealing architecture has emulated the more sophisticated non-stoquastic Hamiltonians of interest for next generation quantum annealing. Here, we present our recent results for tunable XX-coupling between high coherence superconducting flux qubits, as well as robust device simulations of these coupled quantum systems. We consider the capabilities and limitations of annealing architectures based on these two-qubit building blocks, and we address specifically our efforts to engineer strong XX-coupling in the absence of local qubit fields, an inherent limitation of all existing flux qubit-based annealing systems.
*This research was funded by the Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA) and by the Assistant Secretary of Defense for Research & Engineering under Air Force Contract No. FA8721-05-C-0002. The views and conclusions contained herein a
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Presenters
Gabriel Samach
Lincoln Laboratory, Massachusetts Institute of Technology
MIT Lincoln Lab
MIT Lincoln Laboratory
Authors
Gabriel Samach
Lincoln Laboratory, Massachusetts Institute of Technology
MIT Lincoln Lab
MIT Lincoln Laboratory
Steven Weber
MIT Lincoln Lab
MIT Lincoln Laboratory
David Hover
MIT Lincoln Laboratory
MIT Lincoln Lab
Danna Rosenberg
MIT Lincoln Laboratory
MIT Lincoln Lab
Massachusetts Inst of Tech-MIT
Lincoln Laboratory, Massachusetts Inst of Tech-MIT
Jonilyn Yoder
MIT Lincoln Laboratory
MIT Lincoln Lab
Lincoln Laboratory, Massachusetts Institute of Technology
Massachusetts Inst of Tech-MIT
Lincoln Laboratory, Massachusetts Inst of Tech-MIT
David Kim
MIT Lincoln Laboratory
MIT Lincoln Lab
Lincoln Laboratory, Massachusetts Institute of Technology
Massachusetts Inst of Tech-MIT
Lincoln Laboratory, Massachusetts Inst of Tech-MIT
William Oliver
MIT Lincoln Laboratory
MIT Lincoln Lab
Massachusetts Institute of Technology & MIT Lincoln Laboratory
Department of Physics, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts Institute of Technology
Massachusetts Inst of Tech-MIT
Department of Physics, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts Inst of Tech-MIT
MIT
Lincoln Laboratory, Research Laboratory of Electronics, and Department of Physics, Massachusetts Institute of Technology
Department of Physics, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts institute of Technology
