10 papers
Generating function for Hermitian and non-Hermitian models
Hua-Yu Bai, Yang Chen, Guang-Can Guo +2
It is well known that Hermitian and non-Hermitian models exhibit distinct physics and require different theoretical tools. In this work, we propose a unified generating-function fr…
Divergent density of states and non-analytic Lyapunov exponent in one-dimensional slowly varying systems
Hai-Tao Hu, Ming Gong, Guangcan Guo +1
Localization of wave functions in disordered systems can be characterized by the Lyapunov exponent, which is zero in the extended phase and nonzero in the localized phase. Previous…
Hidden self-duality and exact mobility edges in quasiperiodic network models
Hai-Tao Hu, Xiaoshui Lin, Ai-Min Guo +3
In one-dimensional quasiperiodic systems, only a few models with exact mobility edges (MEs) have been constructed using generalized self-duality theory, Avila's global theory, or t…
Coupling between vibration and Luttinger liquid in mechanical nanowires
Zeyu Rao, Yue-Xin Huang, Guang-Can Guo +1
The vibration of the mechanical nanowire coupled to photons via photon pressure and coupled to charges via the capacity has been widely explored in experiments in the past decades.…
Skin mode tunability and self-healing effect in photonic Floquet lattices
Hua-Yu Bai, Yang Chen, Tian-Yang Zhang +3
Non-Hermitian systems host exotic phenomena absent in their Hermitian counterparts, including the recently predicted self-healing effect (SHE) of non-Hermitian skin modes. To date,…
Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Zeyu Rao, Xiaoshui Lin, Xiwang Luo +3
Superradiant phase transitions from cavity light-matter coupling have been widely explored across platforms. Here, we report a unilateral critical endpoint (UCEP) and a tricritical…