Quantum annealing with manufactured spins

M. W. Johnson (), M. H. S. Amin, S. Gildert, T. Lanting, F. Hamze, N. Dickson, R. Harris, A. J. Berkley, J. Johansson, P. Bunyk, E. M. Chapple, C. Enderud, J. P. Hilton, K. Karimi, E. Ladizinsky, N. Ladizinsky, T. Oh, I. Perminov, C. Rich, M. C. Thom, E. Tolkacheva, C. J. S. Truncik, S. Uchaikin, J. Wang, B. Wilson and Giuseppe Rose
Additional contact information
M. W. Johnson: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
M. H. S. Amin: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
S. Gildert: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
T. Lanting: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
F. Hamze: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
N. Dickson: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
R. Harris: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
A. J. Berkley: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
J. Johansson: University of Agder, Post Box 422
P. Bunyk: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
E. M. Chapple: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
C. Enderud: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
J. P. Hilton: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
K. Karimi: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
E. Ladizinsky: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
N. Ladizinsky: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
T. Oh: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
I. Perminov: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
C. Rich: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
M. C. Thom: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
E. Tolkacheva: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
C. J. S. Truncik: Simon Fraser University, Burnaby
S. Uchaikin: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
J. Wang: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby
B. Wilson: D-Wave Systems Inc., 100-4401 Still Creek Drive, Burnaby

Nature, 2011, vol. 473, issue 7346, 194-198

Abstract: Harnessing quantum annealing Many interesting but practically intractable problems can be reduced to that of finding the ground state of a system of interacting spins. It is believed that the ground state of some naturally occurring spin systems can be effectively attained through a process called quantum annealing. Johnson et al. use quantum annealing to find the ground state of an artificial Ising spin system comprised of an array of eight superconducting flux qubits with programmable spin–spin couplings. With an increased number of spins, the system may provide a practical physical means to implement quantum algorithms, possibly enabling more effective approaches towards solving certain classes of hard combinatorial optimization problems.

Date: 2011
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DOI: 10.1038/nature10012

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