开发零噪声推算的投射量子算法,用于准确评估噪声量子设备中的分子能量
Sonaldeep Halder1, Chinmay Shrikhande1, Rahul Maitra1,2
1Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
The Journal of chemical physics
|September 19, 2023
概括
我们为投射量子自溶解器 (ZNE-PQE) 开发了零噪声推断,以提高分子能量的量子计算精度. 这种增强的方法减轻了噪声,使分子科学中更可靠的量子优势成为可能.
科学领域:
- 量子计算是一种量子计算.
- 计算化学的计算化学
- 分子科学 分子科学
背景情况:
- 投影量子自溶器 (PQE) 是一种用于分子基态能量计算的新型量子算法.
- 当前量子硬件中的噪音引入了重大错误,阻碍了准确的结果和量子优势.
- 现有的PQE具有有限的固有噪声弹性,需要用于实际应用的错误减轻技术.
研究的目的:
- 为了提高投射量子Eigensolver (PQE) 的效率和准确性,用于分子能量计算.
- 开发一个最优的框架,将零噪声推断 (ZNE) 集成到PQE算法中,从而创建ZNE-PQE.
- 分析ZNE整合对PQE准确性,效率和融合的影响.
主要方法:
- 通过优化 ZNE 集成,为投射量子自溶解器 (ZNE-PQE) 制定零噪声推断.
- 详细分析PQE组件对能源融合准确性和效率的影响.
- 在ZNE-PQE和传统PQE之间对残留规范景观进行比较分析,以了解性能改进.
主要成果:
- 与传统的PQE相比,ZNE-PQE在计算分子基态能量方面表现出更高的准确性和效率.
- 该研究确定了影响ZNE-PQE趋同轨迹和整体绩效的关键因素.
- 分析显示,ZNE-PQE有效地减轻了硬件噪声,从而实现了更可靠的量子计算.
结论:
- 开发的ZNE-PQE框架显著提高了分子能量的量子计算的准确性.
- 这种方法对于实现分子科学中的实际量子优势至关重要,因为它要求精确的能量计算.
- 预计ZNE-PQE将加速量子计算在依赖分子模拟的领域的应用.
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