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quant-ph2026
Measurement-enhanced entanglement in a monitored superconducting chain
Rui-Jing Guo, Ji-Yao Chen, Zhi-Yuan Wei
A common view in monitored quantum dynamics is that local measurements suppress entanglement growth. We show that this intuition can fail in a one-dimensional spinful fermionic cha…
cond-mat.str-el2026
Variational preparation and characterization of chiral spin liquids in quantum circuits
Zi-Yang Zhang, Donghoon Kim, Ji-Yao Chen
Quantum circuits have been shown to be a fertile ground for realizing long-range entangled phases of matter. While various quantum double models with non-chiral topological order h…
cond-mat.str-el2026
Probing the Dynamical Structure Factor of Quantum Spin Chains via Low-Temperature Gibbs States with Matrix Product State Subspace Expansion
Tomoya Takahashi, Wei-Lin Tu, Ji-Yao Chen +1
Studying finite-temperature properties with tensor networks is notoriously difficult, especially at low temperatures, due to the rapid growth of entanglement and the complexity of…