论文标题
驱动的一粒子量子回旋子
Driven One-Particle Quantum Cyclotron
论文作者
论文摘要
量子回旋子是一个仅占据其最低的回旋子和自旋状态的被困电子或正电子。用QND（量子非态度）耦合到热平衡中的检测振荡器的驱动量子回旋子求解主方程 - 该耦合和开放系统的第一个量子计算。对于检测运动与其热储备之间的小耦合，回旋量子和自旋量子的预测速率与驱动频率的函数跳跃，与预测和用于过去测量的预测和使用方面截然不同。该计算表明，可以根据需要研究标准粒子物理标准模型的最精确预测与基本粒子特性的最准确测量的最精确预测之间的当前差异，这表明可以根据需要进行十倍更精确的电子磁矩测量。
A quantum cyclotron is one trapped electron or positron that occupies only its lowest cyclotron and spin states. A master equation is solved for a driven quantum cyclotron with a QND (quantum nondemolition) coupling to a detection oscillator in thermal equilibrium - the first quantum calculation for this coupled and open system. The predicted rate of cyclotron and spin quantum jumps as a function of drive frequency, for a small coupling between the detection motion and its thermal reservoir, differs sharply from what has been predicted and used for past measurements. The calculation suggests a ten times more precise electron magnetic moment measurement is possible, as needed to investigate current differences between the most precise prediction of the standard model of particle physics, and the most accurate measurement of a property of an elementary particle.
