论文标题
在量子模拟中抑制相干仪表漂移
Suppressing Coherent Gauge Drift in Quantum Simulations
论文作者
论文摘要
嘈杂量子计算机上的现场理论的模拟必须与该噪声引入的错误抗衡。对于规格理论，大量错误违反了量规对称，因此可能导致模拟中发生非物理过程。我们提出了一种适用于非亚伯仪理论的方法，用于通过重复应用伪和量规变换来抑制相干仪表漂移误差。如果主要误差是衡量竞争的情况，我们希望这种方法是提高NISQ时代模拟准确性的实际方法。
Simulations of field theories on noisy quantum computers must contend with errors introduced by that noise. For gauge theories, a large class of errors violate gauge symmetry, and thus may result in unphysical processes occurring in the simulation. We present a method, applicable to non-Abelian gauge theories, for suppressing coherent gauge drift errors through the repeated application of pseudorandom gauge transformation. In cases where the dominant errors are gauge-violating, we expect this method to be a practical way to improve the accuracy of NISQ-era simulations.
