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优化电路中的量子误差缓解,用于实时动态中的粒子密度相关性,用于施温格模型的实时动态
Domenico Pomarico1,2, Mahul Pandey3, Riccardo Cioli3,4
1Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
Entropy (Basel, Switzerland)
|April 26, 2025
概括
量子计算可以实时研究多体系统. 误差缓解技术改善了Zn Schwinger模型的噪音量子模拟,提高了粒子密度相关性准确性.
科学领域:
- 量子多体物理学 量子多体物理学
- 量子信息科学 量子信息科学
- 计算物理 计算物理
背景情况:
- 量子计算提供了直接访问量子多体系统的实时动态.
- 计算非等时相关函数可以揭示诸如量子痕和动态量子相转换之类的现象.
- 量子电路的复杂性引入了噪声,挑战了实际的实时动态计算.
研究的目的:
- 用Zn Schwinger模型作为测试台来评估可观测的实时演变和相关性.
- 调查噪声对量子模拟的影响以及误差缓解的有效性.
- 评估在特定的合模式下对粒子密度相关性进行后处理误差缓解的性能.
主要方法:
- 利用量子经典策略,通过将动态局限于狄拉克真空领域来减少系统维度.
- 优化了量子位模型嵌入,通过将三量子位门的数量最小化来控制计算成本.
- 在物理IBM量子设备上的非平衡火协议下模拟和实现粒子密度运算符的时间演变.
- 在杂的模拟中应用了各种错误减轻技术,以准在杂的模拟中达到最大混合状态的趋同.
主要成果:
- 证明了在杂的量子硬件上模拟Zn Schwinger模型实时动态的可行性.
- 展示了错误减轻技术在提高量子模拟准确性的有效性.
- 确定后处理误差缓解在特定合模式中的粒子密度相关性表现良好.
结论:
- 量子计算是研究量子多体动力学的强大工具,尽管目前的噪声限制.
- 减轻错误对于从杂的量子模拟中获得可靠结果至关重要.
- Schwinger 模型是开发和测试量子模拟和错误纠正策略的宝贵平台.
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