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Quantum tunneling vs. thermal effects in experiments on adiabatic quantum computing

Silevitch, D. M. and Rosenbaum, T. F. and Aeppli, G. (2015) Quantum tunneling vs. thermal effects in experiments on adiabatic quantum computing. European Physical Journal Special Topics, 224 (1). pp. 25-34. ISSN 1951-6355. doi:10.1140/epjst/e2015-02340-6.

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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 and different outcomes. Thermal and quantum annealing are compared in two concentration regimes of a model disordered magnet, where the effects of quantum mechanics can be tuned both by varying an applied magnetic field and by controlling the strength of thermal coupling between the magnet and an external heat bath. The results indicate that quantum annealing hastens convergence to the final state, and that the quantum character of the final state can be engineered thermodynamically.

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Silevitch, D. M.0000-0002-6347-3513
Additional Information:© 2015 EDP Sciences, Springer-Verlag. Received 19 September 2014; Received in final form 16 December 2014; Published online 5 February 2015.
Issue or Number:1
Record Number:CaltechAUTHORS:20150313-124321536
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Official Citation:Silevitch, D., Rosenbaum, T. & Aeppli, G. Eur. Phys. J. Spec. Top. (2015) 224: 25. doi:10.1140/epjst/e2015-02340-6
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55750
Deposited By: Tony Diaz
Deposited On:13 Mar 2015 21:43
Last Modified:10 Nov 2021 20:49

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