25 citations · 43 across the 9 of their papers we have counts for
10 papers
Practical Error Suppression and Mitigation for Reliable Quantum Computing
Han-Ze Li, Mengjie Yang, Xianquan Yan +3
Quantum computing is entering a transitional regime between noisy intermediate-scale quantum (NISQ) processing and early fault-tolerant quantum computation (FTQC), in which increas…
Exceptional activated mode theory for generalized real-complex transitions
Mengjie Yang, Alexander N. Poddubny, Ching Hua Lee
Real-to-complex spectral transitions mark the onset of amplification in non-Hermitian systems, but their thresholds are often treated as model-specific quantities. Here we develop…
Nonlocality-induced critical-length hierarchy from non-Hermitian competition
Mengjie Yang, Alexander N. Poddubny, Ching Hua Lee
Spectral transitions in non-Hermitian lattices often arise from the competition between non-reciprocal skin accumulation and inter-component hybridization. In short-range systems f…
Layer-Resolved Topological Metals in the Bilayer Lieb Lattice
Mengjie Yang, S Rahul, Giandomenico Palumbo
We identify a two-dimensional time-reversal-invariant topological metallic phase on a bilayer Lieb lattice, characterized by a quantized layer--resolved pseudo-spin Chern number. W…
Beyond the non-Hermitian skin effect: scaling-controlled topology from Exceptional-Bound Bands
Mengjie Yang, Ching Hua Lee
We establish a novel mechanism for topological transitions in non-Hermitian systems that are controlled by the system size. Based on a new paradigm known as exceptional-bound (EB)…
Reversing non-Hermitian skin accumulation with a non-local transverse switch
Mengjie Yang, Ching Hua Lee
Asymmetrically directed couplings in non-Hermitian systems cause directional amplification that leads to boundary skin state accumulation. However, counter-intuitively, the directi…
Beyond symmetry protection: Robust feedback-enforced edge states in non-Hermitian stacked quantum spin Hall systems
Mengjie Yang, Ching Hua Lee
Conventional wisdom holds that, in the simplest time-reversal-symmetric setting, strongly coupling two QSH layers yields a trivial phase and no protected topological…
Non-Hermitian ultra-strong bosonic clustering through interaction-induced caging
Mengjie Yang, Luqi Yuan, Ching Hua Lee
We uncover a new mechanism whereby the triple interplay of non-Hermitian pumping, bosonic interactions and nontrivial band topology leads to ultra-strong bosonic condensation. The…
Percolation-induced PT symmetry breaking
Mengjie Yang, Ching Hua Lee
We propose a new avenue in which percolation, which has been much associated with critical phase transitions, can also dictate the asymptotic dynamics of non-Hermitian systems by b…
Concentrated subradiant modes in one-dimensional atomic array coupled with chiral waveguides
Mengjie Yang, Luojia Wang, Xiaoxiong Wu +4
Non-Hermitian systems have recently attracted broad interest and exhibited intriguing physical phenomena, in which the non-Hermitian skin effect is one of the most remarkable quant…