论文标题
$^{155,157} $ gd多级旋转系统中电子核过渡的片上检测
On-Chip Detection of Electronuclear Transitions in the $^{155,157}$Gd Multilevel Spin System
论文作者
论文摘要
在非磁性晶体中稀释的稀土元素的特性使它们成为量子记忆的有前途的候选者，因为它们的希尔伯特空间有限。对量子状态的控制和读数需要高度敏感的测量，并与超导谐振器的电磁模式进行旋转集合的大量耦合。我们报告了从$^{155} $ gd和$^{157} $ gd同位素对电子核状态的禁止过渡的敏感检测，这使连接量子状态具有截然不同的旋转投影的可能性。在反射信号中看到的空腔扰动测量值可检测约7.6 $ \ times10^{7} $旋转以及旋转分解速率和自旋 - 光子耦合强度的测量。
The properties of rare-earth elements diluted in non-magnetic crystals make them a promising candidate for a quantum memory due to their limited Hilbert space. The control and readout of the qubit states require a highly sensitive measurement and large coupling of the spin ensemble with the electro-magnetic mode of a superconducting resonator. We report sensitive detection of forbidden transitions of electronuclear states from the minority species of $^{155}$Gd and $^{157}$Gd isotopes which opens the possibility of connecting quantum states with very different spin projections. Cavity perturbation measurements seen in the reflected signal allows the detection of about 7.6$\times10^{7}$ spins and the measurement of spin decoherence rate and spin-photon coupling strength.
