Miao Qiang, Zheng Yujun
School of Physics, Shandong University, Jinan 250100, China.
Sci Rep. 2016 Jun 29;6:28959. doi: 10.1038/srep28959.
In this paper, the nature of the multi-order resonance and coherent destruction of tunneling (CDT) for two-level system driven cross avoided crossing is investigated by employing the emitted photons 〈N〉 and the Mandel's Q parameter based on the photon counting statistics. An asymmetric feature of CDT is shown in the spectrum of Mandel's Q parameter. Also, the CDT can be employed to suppress the spontaneous decay and prolong waiting time noticeably. The photon emission pattern is of monotonicity in strong relaxation, and homogeneity in pure dephasing regime, respectively.
本文基于光子计数统计，利用发射光子数〈N〉和曼德尔Q参数，研究了驱动交叉避免交叉的二能级系统的多阶共振和隧穿相干破坏（CDT）的性质。曼德尔Q参数谱中呈现出CDT的不对称特征。此外，CDT可用于显著抑制自发衰变并延长等待时间。在强弛豫情况下，光子发射模式分别具有单调性，在纯退相区域具有均匀性。
