Nan Xu, Yan Zhang. Topological edge states with skin effect in a trimerized non-Hermitian lattice [J]. Acta Physica Sinica, 2019, 68(10): 104206-1

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- Acta Physica Sinica
- Vol. 68, Issue 10, 104206-1 (2019)

Fig. 1. Schematic of the generalized trimerized non-Hermitian lattice.扩展的三聚化非厄密晶格示意图

Fig. 2. The eigen-energy spectrum of the trimerized non-Hermitian lattice. (a), (c), (e) and (g) show the real parts of the energy spectrum for
, respectively; (b), (d), (f) and (h) show the imaginary parts of the energy spectrum for
. Green solid lines and brown dash lines represent the energy band of the edge states.
三聚化非厄密晶格的本征能谱 (a), (c), (e)和(g)分别为
时本征能谱的实部; (b), (d), (f)和(h)分别为
时本征能谱的虚部, 边缘态能带用绿色实线和棕色虚线表示

Fig. 3. Photon distributions for eigenstates of the system: (a)
; (b)
; (c)
; (d)
.
系统本征态的光子分布 (a)
; (b)
; (c)
; (d)

Fig. 4. The eigen-energy spectrum and photon distributions for edge states of the system under the influence of the next-nearest-neighbor coupling: (a), (d) and (g) show the real parts of the energy spectrum for
; (b), (e) and (h) show the edge states whose energy band are in the upper gaps for
; (c), (f) and (i) show the edge states whose energy bands are in the lower gaps for
.
次近邻耦合影响下系统的本征能谱和边缘态的光子分布 (a), (d)和(g)分别为
时本征能谱的实部; (b), (e)和(h)分别为
时上能隙中的边缘态; (c), (f)和(i)分别为
时下能隙的边缘态
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