论文标题
波导量子电动力学中驱动的抗Bragg次化状态
Driven anti-Bragg subradiant states in waveguide quantum electrodynamics
论文作者
论文摘要
我们研究了与波导耦合的两级量子位的周期性阵列中的理论驱动量子动力学。我们证明，在抗Bragg时期$ d =λ/4,3λ/4 $的阵列中，密度矩阵的主方程的强大次值次级特征态出现了，即使在低驾驶功率处没有这样的状态，这也是如此。因此，我们的发现表明，在量子非线性方向上，次光状态存在的域扩展超出了常规的亚波长结构。这些驱动的状态直接体现在量子激发之间的长期量子相关性中。
We study theoretically driven quantum dynamics in periodic arrays of two-level qubits coupled to the waveguide. We demonstrate, that strongly subradiant eigenstates of the master equation for the density matrix emerge under strong coherent driving for arrays with the anti-Bragg periods $d=λ/4,3λ/4$... This happens even though are no such states at low driving powers. Thus, our findings show that in the quantum nonlinear regime the domain of existence of subradiant states expands beyond conventional subwavelength structures. These driven states are directly manifested in long-living quantum correlations between the qubit excitations.
