论文标题
活性光子对腔QED动态挫败的影响
The effect of active photons on dynamical frustration in cavity QED
论文作者
论文摘要
我们使用离散的截短的Wigner近似（DTWA）研究了多体旋转玻色子模型的远程平衡动力学机制。我们关注自旋可观察物的动力学，因为它们改变了疾病的强度和光子的频率，发现后者可以极大地改变系统动态响应的结构。当光子以与旋转相似的速度演变时，它们可以诱导以对数或代数缓慢放松为特征的定性截然不同的挫败动力学。后者说明了在存在主动光子自由度的情况下类似玻璃状动力学的弹性，这表明许多带有共振光子或声子的量子系统可以显示出非平衡响应的丰富图，并在未来的量子信息科学上应用了不久的将来的应用。
We study the far-from-equilibrium dynamical regimes of a many-body spin boson model with disordered couplings relevant for cavity QED and trapped ions experiments, using the discrete truncated Wigner approximation (DTWA). We focus on the dynamics of spin observables upon varying the disorder strength and the frequency of the photons, finding that the latter can considerably alter the structure of the system's dynamical responses. When the photons evolve at a similar rate as the spins, they can induce qualitatively distinct frustrated dynamics characterized by either logarithmic or algebraically slow relaxation. The latter illustrates resilience of glassy-like dynamics in the presence of active photonic degrees of freedom, suggesting that disordered quantum many body systems with resonant photons or phonons can display a rich diagram of non-equilibrium responses, with near future applications for quantum information science.
