Distinguishing the Topological Zero Mode and Tamm Mode in a Microwave Waveguide Array

2019 ◽  
Vol 531 (12) ◽  
pp. 1900347 ◽  
Author(s):  
Tao Chen ◽  
Ye Yu ◽  
Yiwen Song ◽  
Dong Yu ◽  
Hongmei Ye ◽  
...  
Keyword(s):  
Zero Mode ◽  
Waveguide Array

scholarly journals Extended SSH Model in Non-Hermitian Waveguides with Alternating Real and Imaginary Couplings

2020 ◽  
Vol 10 (10) ◽  
pp. 3425 ◽  
Author(s):  
Ziwei Fu ◽  
Nianzu Fu ◽  
Huaiyuan Zhang ◽  
Zhe Wang ◽  
Dong Zhao ◽  
...  
Keyword(s):  
Chiral Symmetry ◽  
Zero Mode ◽  
Periodic Structures ◽  
Topological Invariant ◽  
Waveguide Array ◽  
Topological Properties ◽  
Absolute Value ◽  
Optical Routers ◽  
Break Chiral Symmetry ◽  
Ssh Model

We studied the topological properties of an extended Su–Schrieffer–Heeger (SSH) model composed of a binary waveguide array with alternating real and imaginary couplings. The topological invariant of the periodic structures remained quantized with chiral symmetry even though the system was non-Hermitian. The numerical results indicated that phase transition arose when the absolute values of the two couplings were equal. The system supported a topological zero mode at the boundary of nontrivial structures when chiral symmetry was preserved. By adding onsite gain and loss to break chiral symmetry, the topological modes dominated in all supermodes with maximum absolute value of imaginary energy. This study enriches research on the SSH model in non-Hermitian systems and may find applications in optical routers and switches.

scholarly journals Flexibly designed spoof surface plasmon waveguide array for topological zero-mode realization

2018 ◽  
Vol 26 (24) ◽  
pp. 31636 ◽  
Author(s):  
Qingqing Cheng ◽  
Tao Chen ◽  
Dong Yu ◽  
Yujiao Liao ◽  
Jingya Xie ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Zero Mode ◽  
Waveguide Array ◽  
Surface Plasmon Waveguide

Design and Fabrication of Linear-shaped Zero Mode Waveguides for Single Molecule Observation of Kinesin and Fluorescent ATP

2017 ◽  
Vol 137 (6) ◽  
pp. 159-164
Author(s):  
Kazuya Fujimoto ◽  
Yuki Morita ◽  
Ryota Iino ◽  
Michio Tomishige ◽  
Hirofumi Shintaku ◽  
...  
Keyword(s):  
Single Molecule ◽  
Zero Mode

scholarly journals The role of zero-mode contributions in the matching for the twist-3 PDFs e(x) and hL(x)

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Shohini Bhattacharya ◽  
Krzysztof Cichy ◽  
Martha Constantinou ◽  
Andreas Metz ◽  
Aurora Scapellato ◽  
...  
Keyword(s):  
Zero Mode

Intensity dynamics in a waveguide array laser

2011 ◽  
Vol 284 (4) ◽  
pp. 971-978 ◽  
Author(s):  
Mingming Feng ◽  
Matthew O. Williams ◽  
J. Nathan Kutz ◽  
Kevin L. Silverman ◽  
Richard P. Mirin ◽  
...  
Keyword(s):  
Waveguide Array

scholarly journals Detecting the massive bosonic zero-mode in expanding cosmological spacetimes

2021 ◽  
Vol 103 (10) ◽  
Author(s):  
Vladimir Toussaint ◽  
Jorma Louko
Keyword(s):  
Zero Mode
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