Quantum Algorithms for Testing Hamiltonian Symmetry

Quantum Algorithms for Testing Hamiltonian Symmetry
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用于测试哈密顿对称性的量子算法

DOI:
10.1103/physrevlett.129.160503
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发表时间:
2022
影响因子:
8.6
通讯作者:
Wilde, Mark M.
Wilde, Mark M.
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
LaBorde, Margarite L.;Wilde, Mark M.

文献摘要

相似文献

哈密顿量中的对称性在量子物理中扮演着重要的角色,因为它们直接对应于相关系统的守恒量。在这封信中,我们提出了能够测试哈密顿量关于群是否表现出对称性的量子算法。我们证明了量子力学中常见的哈密顿对称性的表达式与我们的算法的接受概率直接对应。我们在现有的量子计算机上执行我们的对称性测试算法之一,用于对称和非对称情况的简单示例。
Symmetries in a Hamiltonian play an important role in quantum physics because they correspond directly with conserved quantities of the related system. In this Letter, we propose quantum algorithms capable of testing whether a Hamiltonian exhibits symmetry with respect to a group. We demonstrate that familiar expressions of Hamiltonian symmetry in quantum mechanics correspond directly with the acceptance probabilities of our algorithms. We execute one of our symmetry-testing algorithms on existing quantum computers for simple examples of both symmetric and asymmetric cases.