.png){kind=icon}
返回
Error bounds for variational quantum time evolution
.png){kind=icon}
OA
AI
DOI：10.1103/PhysRevApplied.20.044059.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Variational quantum time evolution allows us to simulate the time dynamics of quantum systems with near-term compatible quantum circuits. Due to the variational nature of this method the accuracy of the simulation is a priori unknown. We derive a posteriori global phase agnostic error bounds for the state simulation accuracy with variational quantum time evolution that improve the tightness of fidelity esti-mates over existing a posteriori error bounds. These analysis tools are practically crucial for assessing the quality of the simulation and making informed choices about simulation hyperparameters. The effi-cient, a posteriori evaluation of the bounds can be tightly integrated with the variational time simulation and, hence, results in a minor resource overhead, which is governed by the system's energy variance. The performance of the error bounds is demonstrated on numerical examples.
期刊
IF:
4.4
论文数:
7.1K
被引数:
2.8W
机构
引用论文
Determining eigenstates and thermal states on a quantum computer using quantum imaginary time evolution.png)
NATURE PHYSICS
NATURE PHYSICSIF18.4
PREAI
分享收藏Efficient Variational Quantum Simulator Incorporating Active Error MinimizationPHYSICAL REVIEW X
OAAI
PHYSICAL REVIEW XIF15.7
OAAI分享收藏Geochronology and geochemistry of the Yilan blueschists in the Heilongjiang Complex, northeastern China and tectonic implicationsLithos
LithosIF0
PREAI
分享收藏
查看更多内容