论文标题
压制$ 1/f $噪声的量子模拟器的噪声
Suppression of $1/f$ noise in quantum simulators of gauge theories
论文作者
论文摘要
在当前驱动器以减少越来越多的复杂仪理论现象的驱动器中，有必要设计方案，以控制和抑制不同实验平台上不可避免的破量规误差。尽管已经有几种成功解决连贯错误的方法，但在破裂的方式上几乎没有采取任何措施。通过数值求解相应的bloch-红场方程，我们表明，最近开发的\ textIt {线性规保护}的方法抑制了由于$ 1/f^β$噪声为$ 1/v^β$，$ 1/v^β$，其中$ v $是保护强度和$β> 0 $，在Abelian Lattice Getem中，我们显示的是我们的Exem asem as Exem asem asem asem asem asem asem， $ \ mathrm {u}（1）$量子链接模型和$ \ mathbb {z} _2 $ lattice仪表理论。我们通过时间依赖性的扰动理论支持我们的数值发现。我们的发现在现代模拟量子模拟器和数字NISQ设备中具有直接适用性。
In the current drive to quantum-simulate evermore complex gauge-theory phenomena, it is necessary to devise schemes allowing for the control and suppression of unavoidable gauge-breaking errors on different experimental platforms. Although there have been several successful approaches to tackle coherent errors, comparatively little has been done in the way of decoherence. By numerically solving the corresponding Bloch--Redfield equations, we show that the recently developed method of \textit{linear gauge protection} suppresses the growth of gauge violations due to $1/f^β$ noise as $1/V^β$, where $V$ is the protection strength and $β>0$, in Abelian lattice gauge theories, as we show through exemplary results for $\mathrm{U}(1)$ quantum link models and $\mathbb{Z}_2$ lattice gauge theories. We support our numerical findings with analytic derivations through time-dependent perturbation theory. Our findings are of immediate applicability in modern analog quantum simulators and digital NISQ devices.
