在量子计算机上进行分析?

Quantum Inf. Comput. Pub Date : 2020-10-04 DOI:10.26421/QIC21.3-4-4

Rafael I. Nepomechie

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引用次数: 11

摘要

本文考虑了用变分量子本征求解器(VQE)算法研究各向异性海森堡量子自旋链的可行性，将贝特态作为变分态，贝特根作为变分参数。对于短链，我们构造了变分参数函数的精确的一磁振子试态，并在Qiskit中实现了VQE计算。然而，精确的多磁振子试态似乎是遥不可及的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bethe ansatz on a quantum computer?

We consider the feasibility of studying the anisotropic Heisenberg quantum spin chain with the Variational Quantum Eigensolver (VQE) algorithm, by treating Bethe states as variational states, and Bethe roots as variational parameters. For short chains, we construct exact one-magnon trial states that are functions of the variational parameter, and implement the VQE calculations in Qiskit. However, exact multi-magnon trial states appear to be out out of reach.

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Quantum Inf. Comput.

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