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arXiv · 2305.19014

Implementing Jastrow--Gutzwiller operators on a quantum computer using the cascaded variational quantum eigensolver algorithm

John P. T. Stenger·C. Stephen Hellberg·Daniel Gunlycke
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Abstract

A Jastrow--Gutzwiller operator adds many-body correlations to a quantum state. However, the operator is non-unitary, making it difficult to implement directly on a quantum computer. We present a novel implementation of the Jastrow--Gutzwiller operator using the cascaded variational quantum eigensolver algorithm. We demonstrate the method on IBM Q Lagos for a Hubbard model.

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John P. T. Stenger, C. Stephen Hellberg, Daniel Gunlycke. 2023-05-30. Implementing Jastrow--Gutzwiller operators on a quantum computer using the cascaded variational quantum eigensolver algorithm. https://doi.org/10.1103/physreva.107.062606

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