论文标题
扭矩引起的色散读数在弱耦合的混合系统中
Torque-induced dispersive readout in a weakly coupled hybrid system
论文作者
论文摘要
我们提出了一个量子状态的量子读数机制，该机制是分散性稳定性量子的量子量较弱的量子机制。混合系统由铁磁绝缘子和微波腔中的超导量子组成。测量灵敏度的增强是通过将扭矩施加到铁磁绝缘子磁化强度上来实现的，从而补偿了导致特殊点的系统阻尼。提出的马卡尼斯允许通过腔的传输或磁性材料的FMR信号来测量量子状态。
We propose a quantum state readout mechanism of a weakly coupled qubit in dispersive regime. The hybrid system consists of ferromagnetic insulator and a superconducting qubit in a microwave cavity. The enhancement of the measurement sensitivity is achieved by exerting torque on the ferromagnetic insulator magnetization, which compensates the damping of the system leading to an exceptional point. The proposed machanism allows to measure the qubit state either via the transmission of the cavity or the FMR signal of the magnetic material.
