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Counting defects in quantum computers with Graphics Processing Units
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DOI：10.1016/j.jcp.2018.04.016.png)
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Abstract
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We show how to simulate the dynamics of many body quantum systems using Graphics Processing Units or a similar heterogeneous architecture. In particular, we focus on the one dimensional quantum Ising model. Its entire time evolution is computed in parallel. The dynamics of this model provides a valuable information regarding defects created during quantum annealing. Counting such imperfections comprise a perfect test for assessing correctness of adiabatic quantum computing (B. Gardas et al. (2017) [11]). A fast method to calculate topological defects even when some types of decoherence are present is described. (C) 2018 Elsevier Inc. All rights reserved.
Keywords:
Parallel computing
GPU
Quantum annealing
Ising model
D-Wave
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