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cond-mat.str-el2023
Non-Hermitian Chiral Edge Modes With Complex Fermi Velocity
Fei Yang, Xue-Ping Ren, Su-peng Kou
Recently, much attention has been paid to uncovering the influence of dissipation on a quantum system, particularly on how the non-Hermitian (NH) terms modify the band topology of…
cond-mat.supr-con2023★ 5 cited
Optical response of Higgs mode in superconductors at clean limit: formulation through Eilenberger equation and Ginzburg-Landau Lagrangian
F. Yang, M. W. Wu
Both macroscopic Ginzburg-Landau Lagrangian and microscopic gauge-invariant kinetic equation suggest a finite Higgs-mode generation in the second-order optical response of supercon…
cond-mat.mes-hall2023★ 7 cited
Symmetry classes of dissipative topological insulators with edge dark state
Fei Yang, Zheng Wei, Xianqi Tong +2
We classify the dissipative topological insulators (TIs) with edge dark states (EDS) by using the 38-fold way of non-Hermitian systems in this paper. The dissipative dynamics of th…