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sbovqaopt: Surrogate-based optimizer for variational quantum algorithms v.0.1.0

Ryan Shaffer

Published Jan 1, 2022• 0 citations
Publisher

Abstract

SAND2022-13232 O The sbovqaopt package provides a surrogate-based optimizer for variational quantum algorithms as introduced in the journal publication of the same title. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.

DOI
10.11578/dc.20240727.4

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SAND2022-13232 O The sbovqaopt package provides a surrogate-based optimizer for variational quantum algorithms as introduced in the journal publication of the same title. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.
This is software in Python that simulates the quantum approximate optimization algorithm (QAOA) as described in https://arxiv.org/abs/1411.4028. The software has customization that speeds up simulation and provides interface to the Rapid Optimization Library (ROL) developed at Sandia. SAND2019-8935 M Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.
Drawbacks • Not optimal • No constraint on the standard deviation of intensities • No phase restriction • Fourier transform can be accelerated from a 𝑂 𝑁 2 to 𝑂 𝑁 log 2 𝑁 with the fast Fourier transform • Branching decision making can increase computation time Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525. Modified Gerchberg-Saxton AlgorithmTo overcome the drawbacks of classical GS algorithm, several different modifications were tested to determine optimal results.The following modifications were tested in the GS algorithm to test their effect on accuracy, distribution, and timing • Modified weighting: ሚ 𝐴 𝑛 𝐹 = 𝐼 𝑡 -1 -𝜏 𝐴 𝑛 𝐹 , 0 ≤ 𝜏 ≤ 1
Jaqal-pup (Jaqal Programming Utilities Project) is a high-level Python metaprogramming interface for Jaqal, a quantum programming language for near-term quantum hardware (see https://arxiv.org/abs/2003.09382 for a description of Jaqal). In addition to parsing and writing out Jaqal programs, it includes the ability to read in and write out quantum programs in other languages and frameworks, e.g. Qiskit (IBM), Quil (Rigetti), Cirq (Google), Q# (Microsoft), ProjectQ (ETH Zurich), and tket (Cambridge Quantum Computing). It implements a gate scheduler, an emulator of a small-scale quantum computer programmed using Jaqal, and tie-ins for other simulation back-ends. SAND2020-12710 M Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.