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Title: Adiabatic quantum optimization for associative memory recall

Journal Article · · Frontiers in Physics
 [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Computing Inst.

Hopfield networks are a variant of associative memory that recall patterns stored in the couplings of an Ising model. Stored memories are conventionally accessed as fixed points in the network dynamics that correspond to energetic minima of the spin state. We show that memories stored in a Hopfield network may also be recalled by energy minimization using adiabatic quantum optimization (AQO). Numerical simulations of the underlying quantum dynamics allow us to quantify AQO recall accuracy with respect to the number of stored memories and noise in the input key. We investigate AQO performance with respect to how memories are stored in the Ising model according to different learning rules. Our results demonstrate that AQO recall accuracy varies strongly with learning rule, a behavior that is attributed to differences in energy landscapes. Consequently, learning rules offer a family of methods for programming adiabatic quantum optimization that we expect to be useful for characterizing AQO performance.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1185587
Journal Information:
Frontiers in Physics, Vol. 2; ISSN 2296-424X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Identifying the minor set cover of dense connected bipartite graphs via random matching edge sets journal February 2017
Quantum pattern recognition with multi-neuron interactions journal January 2018
A Pattern Recognition Algorithm for Quantum Annealers journal December 2019
Machine learning & artificial intelligence in the quantum domain: a review of recent progress journal June 2018
Quantum Robotics: A Primer on Current Science and Future Perspectives journal January 2017
Machine learning \& artificial intelligence in the quantum domain preprint January 2017
Designing ground states of Hopfield networks for quantum state preparation text January 2018
A pattern recognition algorithm for quantum annealers preprint January 2019

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