论文标题
通过动态极化核自旋浴的进液诱导的NV中心自由感应衰减的非经典性
Precession-induced nonclassicality of the free induction decay of NV centers by a dynamical polarized nuclear spin bath
论文作者
论文摘要
量子和古典世界之间对歧义边界的持续探索刺激了量子科学和技术的实质性发展。最近，从量子信息理论的角度提出了动力学过程的非经典性，这是在见证与哈密顿集合模拟的非经典相关性方面。为了洞悉该过程非年龄段的量子动力机制，我们在这里建议研究与NV $^ - $中心相关的电子自旋免费感应传播过程的非经典性。通过通过外部磁场和核自旋极化来控制核自旋进动动力学，可以操纵电子自旋的动力学行为，从而显示经典性和非经典性之间的过渡。我们提出了对经典性非班级性转变的解释，该旋转轴向方向和动力学的解释。我们还进行了一系列支持我们发现的数值模拟。因此，我们可以将电子自旋动力学的非经典特征归因于核自旋进动力学的行为。
The ongoing exploration of the ambiguous boundary between the quantum and the classical worlds has spurred substantial developments in quantum science and technology. Recently, the nonclassicality of dynamical processes has been proposed from a quantum-information-theoretic perspective, in terms of witnessing nonclassical correlations with Hamiltonian ensemble simulations. To acquire insights into the quantum-dynamical mechanism of the process nonclassicality, here we propose to investigate the nonclassicality of the electron spin free-induction-decay process associated with an NV$^-$ center. By controlling the nuclear spin precession dynamics via an external magnetic field and nuclear spin polarization, it is possible to manipulate the dynamical behavior of the electron spin, showing a transition between classicality and nonclassicality. We propose an explanation of the classicality-nonclassicality transition in terms of the nuclear spin precession axis orientation and dynamics. We have also performed a series of numerical simulations supporting our findings. Consequently, we can attribute the nonclassical trait of the electron spin dynamics to the behavior of nuclear spin precession dynamics.
