Chang Chih-Chun, Lin Lee, Chen Guang-Yin
Department of Physics, National Chung Hsing University, Taichung, 402, Taiwan.
Sci Rep. 2019 Sep 10;9(1):13033. doi: 10.1038/s41598-019-49606-y.
We investigate interactions between two (parallel) arrays of two-level atoms (2LA) via photons through quantum electrodynamical interaction with one array (the source array) connected to a particle source, and we study the (photo-)resistivity of the other array (the measured array). The wave function of the interacted photon propagating in an array is a Bloch wave with a gap in its eigenvalue (the photonic dispersion). Due to interactions between arrayed 2LA and the dressed photonic field with non-linear dispersion, the conduction behaviors of the measured array can be very diversified according to the input energy of the particle source connected to the source array, and their relative positions. As a result, the resistivity of the measured array can be zero or negative, and can also be oscillatory with respect to the incoming energy of the particle source of the source array, and the separation between arrays.
我们通过量子电动力学相互作用，研究两个（平行）两能级原子（2LA）阵列之间通过光子的相互作用，其中一个阵列（源阵列）连接到粒子源，我们研究另一个阵列（测量阵列）的（光）电阻率。在阵列中传播的相互作用光子的波函数是一个在其本征值（光子色散）中有能隙的布洛赫波。由于排列的2LA与具有非线性色散的修饰光子场之间的相互作用，根据连接到源阵列的粒子源的输入能量及其相对位置，测量阵列的传导行为可能非常多样化。结果，测量阵列的电阻率可以为零或为负，并且相对于源阵列的粒子源的入射能量以及阵列之间的间距也可以是振荡的。
