论文标题
在真空中的金属表面上滑动中性粒子的增强性增强性
Enhanced decoherence for a neutral particle sliding on a metallic surface in vacuum
论文作者
论文摘要
相对运动中的身体，在真空中在空间上分离，经历一种小摩擦力，称为量子摩擦。到目前为止，由于其幅度较小和短范围，这种力已经避免了实验检测。在此，我们提供了定量的细节，以通过测量原子中的相干来跟踪量子摩擦的痕迹。我们注意到，环境诱导的破坏性可以分解为不同签名的贡献：在存在介电板的情况下由电磁真空引起的校正和粒子运动引起的校正。在这个方向上，我们表明非接触式摩擦增强了移动原子的破坏。此外，可以通过彻底选择材料的两级粒子和drude-lorentz参数来扩大其效果。在这种情况下，我们建议通过相干的速度依赖性测量破坏性时间可以间接证明量子摩擦的存在。
Bodies in relative motion, spatially separated in vacuum, experience a tiny friction force known as quantum friction. This force has eluded experimental detection so far due to its small magnitude and short range. Herein, we give quantitative details so as to track traces of the quantum friction by measuring coherences in the atom. We notice that the environmentally induced decoherence can be decomposed into contributions of different signature: corrections induced by the electromagnetic vacuum in presence of the dielectric sheet and those induced by the motion of the particle. In this direction, we show that non-contact friction enhances the decoherence of the moving atom. Further, its effect can be enlarged by a thorough selection of the two-level particle and the Drude-Lorentz parameters of the material. In this context, we suggest that measuring decoherence times through velocity dependence of coherences could indirectly demonstrate the existence of quantum friction.
