28 citations · 37 across the 9 of their papers we have counts for
10 papers
Hilbert space connectivity in non-Hermitian many-body systems: emergent scale-dependent amplification and constraint-induced skin localization
Zichang Hao, Wen-Tan Xue, Ching Hua Lee
Various exotic many-body phenomena such as quantum scars and fractons have been linked to Hilbert space fragmentation. In this work, we find that in non-Hermitian settings, Hilbert…
A Recursive Module-Coupling Algorithm for Computing Low-Energy Eigenstates
Dihang Sun, Nannan Ma, Ching Hua Lee +2
Finding the eigenstates of a many-body Hamiltonian is a fundamental challenge in physics and computational science. Since the search space grows exponentially with system size, num…
Non-Hermitian Edge State Endocytosis
Si-Yu Yuan, Wen-Tan Xue, Ching Hua Lee
An isolated edge state observed in a finite open chain is usually expected to survive the thermodynamic limit (TDL), with a localization mechanism distinct from non-Hermitian skin…
Observation of flat-band skin effect
Xulong Wang, Dongyi Wang, Congwei Lu +4
Symmetry-protected ideal flat bands in one-dimensional (1D) Hermitian lattices are populated by compact localized states (CLS) - a special class of localization with wavefunctions…
Interacting many-body non-Hermitian systems as Markov chains
Zichang Hao, Wei Jie Chan, Ching Hua Lee
Rich phenomenology emerges at the intersection of non-Hermiticity and many-body dynamics, yet physically realizable implementations remain challenging. In this work, we propose a g…
Benchmarking Quantum Solvers in Noisy Digital Simulations for Financial Portfolio Optimization
Ruizhe Shen, Zichang Hao, Ching Hua Lee
In this work, we benchmark two prominent quantum algorithms: Quantum Imaginary-Time Evolution (QITE) and the Quantum Approximate Optimization Algorithm (QAOA) for obtaining the gro…
Interacting non-Hermitian edge and cluster bursts on a digital quantum processor
Jin Ming Koh, Wen-Tan Xue, Tommy Tai +2
A lossy quantum system harboring the non-Hermitian skin effect can in certain conditions exhibit anomalously high loss at the boundaries of the system compared to the bulk, a pheno…
Topologically protected negative entanglement
Wen-Tan Xue, Ching Hua Lee
The entanglement entropy encodes fundamental characteristics of quantum many-body systems, and is particularly subtle in non-Hermitian settings where eigenstates generically become…
Experimental observation of exceptional bound states in a classical circuit network
Deyuan Zou, Tian Chen, Haiyu Meng +3
Exceptional bound (EB) states represent an unique new class of robust bound states protected by the defectiveness of non-Hermitian exceptional points. Conceptually distinct from th…
Predicting quantum many-body dynamics with transferable neural networks
Zewang Zhang, Shuo Yang, Yi-hang Wu +6
Machine learning (ML) architectures such as convolutional neural networks (CNNs) have garnered considerable recent attention in the study of quantum many-body systems. However, adv…