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Quantum annealing of a disordered magnet

Brooke, J. and Bitko, D. and Rosenbaum, T. F. and Aeppli, G. (1999) Quantum annealing of a disordered magnet. Science, 284 (5415). pp. 779-781. ISSN 0036-8075. doi:10.1126/science.284.5415.779.

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Traditional simulated annealing uses thermal fluctuations for convergence in optimization problems. Quantum tunneling provides a different mechanism for moving between states, with the potential for reduced time scales. Thermal and quantum annealing are compared in a model disordered magnet, where the effects of quantum mechanics can be tuned by varying an applied magnetic field. The results indicate that quantum annealing hastens convergence to the optimum state.

Item Type:Article
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Alternate Title:Quantum Annealing of a Disordered Spin System
Additional Information:© 1999 American Association for the Advancement of Science. Received for publication 20 January 1999. Accepted for publication 24 March 1999. We have benefited greatly from discussions with P. Chandra, S. N. Coppersmith, and A. Ramirez. The work at the University of Chicago was supported primarily by the Materials Research Science and Engineering Center (MRSEC) Program of the NSF under award number DMR-9808595.
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Issue or Number:5415
Record Number:CaltechAUTHORS:20140707-163032166
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46977
Deposited By: George Porter
Deposited On:14 Jul 2014 15:19
Last Modified:10 Nov 2021 17:32

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