3 papers
quant-ph2026
Non-Hermitian scattering in SSH superconducting waveguides: exact Green-function reduction and dimerization-sensitive microwave functionalities
Jie Zhou, Xiao-Xue Zhang, Xi-Zheng Zhang
We formulate an exact Green-function theory for non-Hermitian single-microwave-photon scattering by finite superconducting circuit subsystems embedded in an SSH waveguide. The stru…
quant-ph2026
Single-photon scattering in a dissipative superconducting-qubit--SSH lattice hybrid
Xiao-Xue Zhang, Jie Zhou, Xi-Zheng Zhang
We study single-photon scattering in a Su--Schrieffer--Heeger (SSH) photonic lattice locally coupled to a superconducting qubit with tunable loss or gain. Working in the single-exc…
quant-ph2026
Boundary logical subspace and bulk dynamical probes in flux-controlled anomalous Floquet quantum walks
WeiCheng Ning, YanSheng Liu, XiaoXue Zhang +1
We formulate a one-dimensional flux-controlled anomalous Floquet quantum walk and show that it admits a direct microscopic realization in a driven bipartite lattice. The walk consi…