标题： 氦表面涨落对捕获电子的里德伯跃迁的影响 显示英文标题

标题： Effect of helium surface fluctuations on the Rydberg transition of trapped electrons

摘要： 电子被束缚在液氦表面是一个非常清洁的系统，有望成为可扩展的量子比特平台。 然而，超流体表面并非没有波动，这些波动可能会导致电子量子态的衰减和去相位。 理解和减轻这些波动对于电子-氦(eHe)量子比特技术的发展至关重要。 最近有一些工作利用超导共面波导(CPW)谐振器研究了由于恒温器机械振动引起的表面振荡。 在本工作中，我们关注亚赫兹频率范围，并观察到表面振荡对微通道捕获装置中电子里德伯跃迁时间动力学的显著影响。 我们提出了这种振荡的可能来源，并发现相应的振荡频率估计与观测结果有合理的吻合。 显示英文摘要

摘要： Electrons trapped on the surface of liquid helium is an extremely clean system which holds promise for a scalable qubit platform. However, the superfluid surface is not free from fluctuations which might cause the decay and dephasing of the electrons quantized states. Understanding and mitigating these fluctuations is essential for the advancement of electrons-on-helium (eHe) qubit technology. Some work has been recently done to investigate surface oscillations due to the mechanical vibration of the cryostat using a superconducting coplanar waveguide (CPW) resonator. In the present work, we focus on a sub-hertz frequency range and observe a strong effect of surface oscillations on the temporal dynamics of the Rydberg transition of electrons confined in a microchannel trapping device. We suggest possible origin of such oscillations and find a reasonable agreement between the corresponding estimation of the oscillation frequency and the observed result.