论文标题
NV中心与动态极化核环境相互作用的客观性的出现
Appearance of objectivity for NV centers interacting with dynamically polarized nuclear environment
论文作者
论文摘要
量子到古典过渡仍然充分理解。在其多个方面，最近人们引起了人们的关注 - 客观世界的外观是量子的。一个特别的想法是，由于特定的量子状态结构在进化过程中形成，称为频谱广播结构（SBS），因此客观性出现。尽管已经对这种最强，最基本的客观性形式进行了很多研究，但到目前为止，尚未对其在具体物理介质中进行实际实现。在这项工作中，我们研究了使用钻石中广泛研究的氮 - 牙中心通过SBS形成模拟客观化过程的可能性。假设动态极化技术的可实现限制，我们表明，对于高但实验性的可行极化（$ p> 0.5 $）的核自旋，对于低于$ \ of \ \ \ \！ 20 $高斯NV中心的状态及其最近的两极分化环境在SBS状态下也很好地接近。
Quantum-to-classical transition still eludes a full understanding. Out of its multiple aspects, one has recently gained an increased attention - the appearance of objective world out of the quantum. One particularly idea is that objectivity appears thanks to specific quantum state structures formation during the evolution, known as Spectrum Broadcast Structures (SBS). Despite that quite some research was already performed on this strongest and most fundamental form of objectivity, its practical realization in a concrete physical medium has not been analyzed so far. In this work, we study the possibility to simulate objectivization process via SBS formation using widely studied Nitrogen-Vacancy centers in diamonds. Assuming achievable limits of dynamical polarization technique, we show that for high, but experimentally viable polarizations ($p>0.5$) of nuclear spins and for magnetic fields lower than $\approx \! 20$ Gauss the state of the NV center and its nearest polarized environment approaches reasonably well an SBS state.
