Title: Prospects of phase-adaptive cooling of levitated magnetic particles in a hollow-core photonic-crystal fibre Show Chinese title

Title: 空心芯光子晶体光纤中悬浮磁性粒子的相位自适应冷却前景

Abstract: We analyze the feasibility of cooling of classical motion of a micro- to nano-sized magnetic particle, levitated inside a hollow-core photonic crystal fiber. The cooling action is implemented by means of controlling the relative phase between counter-propagating fiber guided waves. Direct imaging of the particle's position allows dynamic phase adjustments that produce a Stokes-type cooling force. We provide estimates of cooling efficiency and final achievable temperature, taking into account thermal and detection noise sources. Our results bring forward an important step towards using trapped micro-magnets in sensing, testing the fundamental physics and preparing the quantum states of magnetization. Show Chinese abstract

Abstract: 我们分析了在空心芯光子晶体光纤中悬浮的微米到纳米级磁性粒子的经典运动冷却的可行性。 冷却作用是通过控制反向传播光纤导波之间的相对相位来实现的。 直接成像粒子的位置允许动态相位调整，从而产生斯托克斯型冷却力。 我们考虑了热噪声和检测噪声源，提供了冷却效率和最终可达到温度的估计。 我们的结果为在传感、测试基础物理和制备磁化量子态中使用捕获的微磁体迈出了一步。