论文标题
在rydberg-artom-superconducting-cirducuit界面处的腔体增强的拉姆西光谱
Cavity-enhanced Ramsey spectroscopy at a Rydberg-atom-superconducting-circuit interface
论文作者
论文摘要
Rydberg氦原子与微波场的相干相互作用已被利用以探测单个共振器模式的频谱特征。这是通过在1S55S $^3 $ s $ _1 $ rydberg水平的resonance增强的两种两色两光子激发中从稳态的1S2S $^3 $ s $ _1 $等级来准备的，从而实现了这一点。 The atoms then travelled over the resonator in which the third harmonic microwave field, at a frequency of $ω_{\mathrm{res}}=2π\times19.556$ GHz, drove the two-photon 1s55s$^3$S$_1\rightarrow$1s56s$^3$S$_1$ transition.通过将一系列拉姆西脉冲注入谐振器中，并通过状态选择性脉冲电场电离监测rydberg状态人群的连贯演化，因为记录了微波场的频率，允许记录spectra，允许通过ATOMS ATOMS ACTOCTACT ACTICS SENSSORS SENSSORS SENSSORS SENSORSS SYSOMS确定共振器的共振频率和质量因素。
The coherent interaction of Rydberg helium atoms with microwave fields in a $λ/4$ superconducting coplanar waveguide resonator has been exploited to probe the spectral characteristics of an individual resonator mode. This was achieved by preparing the atoms in the 1s55s$^3$S$_1$ Rydberg level by resonance enhanced two-color two-photon excitation from the metastable 1s2s$^3$S$_1$ level. The atoms then travelled over the resonator in which the third harmonic microwave field, at a frequency of $ω_{\mathrm{res}}=2π\times19.556$ GHz, drove the two-photon 1s55s$^3$S$_1\rightarrow$1s56s$^3$S$_1$ transition. By injecting a sequence of Ramsey pulses into the resonator, and monitoring the coherent evolution of the Rydberg state population by state-selective pulsed electric field ionization as the frequency of the microwave field was tuned, spectra were recorded that allowed the resonator resonance frequency and quality factor to be determined with the atoms acting as microscopic quantum sensors.
