activity
20192026
most citedWeak Ergodicity Breaking in Non-Hermitian Many-body Systems

20 citations · 73 across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.str-el2026

Pair-Density Wave from Doping an Altermagnetic Mott Insulator

Shuai A. Chen, Qianqian Chen, Guangyu Yu +1

Pair-density-wave (PDW) superconductivity is a state in which the superconducting order parameter modulates at a finite wavevector. Using large-scale density matrix renormalization…

cond-mat.str-el2025

Thermal states emerging from low-entanglement background in disordered spin models

Yule Ma, Qianqian Chen, Mingyang Li +2

Thermalization in isolated quantum systems is governed by the eigenstate thermalization hypothesis, while strong disorder can induce its breakdown via many-body localization. Here…

cond-mat.str-el2024★ 1 cited

Geometric Frustration Assisted Kinetic Ferromagnetism in Doped Mott Insulators

Qianqian Chen, Shuai A. Chen, Zheng Zhu

Understanding ferromagnetism mechanism in doped Mott insulators on frustrated lattices remains challenging at intermediate coupling and finite doping. Here, we study the itinerant…

cond-mat.str-el2024★ 2 cited

Mean Field Study of Superconductivity in the Square Lattice - Model with Three-Site Hopping

Ke Yang, Qianqian Chen, Lei Qiao +1

It remains an open question whether the two-dimensional single-band pure Hubbard model and its related pure - model truly capture the superconducting order in cuprates. Recen…

cond-mat.str-el2023★ 7 cited

Phase Diagram of the Square-Lattice -- Model for Electron-Doped Cuprates

Qianqian Chen, Lei Qiao, Fuchun Zhang +1

Motivated by significant discrepancies between experimental observations of electron-doped cuprates and numerical results of the Hubbard and - models, we investigate the role…

cond-mat.dis-nn2023★ 1 cited

Inverting multiple quantum many-body scars via disorder

Qianqian Chen, Zheng Zhu

The observations of persistent revivals in the Rydberg atom chain have revealed a weak ergodicity-breaking mechanism known as quantum many-body scars, which is typically a collecti…

cond-mat.str-el2022★ 10 cited

Superconductivity in doped triangular Mott insulators: the roles of parent spin backgrounds and charge kinetic energy

Zheng Zhu, Qianqian Chen

We study the prerequisites for realizing superconductivity in doped triangular-lattice Mott insulators by considering three distinct parent spin backgrounds, i.e., an…

quant-ph2022★ 5 cited

Dynamical decoupling for realization of topological frequency conversion

Qianqian Chen, Haibin Liu, Min Yu +2

The features of topological physics can manifest in a variety of physical systems in distinct ways. Periodically driven systems, with the advantage of high flexibility and controll…

cond-mat.quant-gas2022★ 20 cited

Weak Ergodicity Breaking in Non-Hermitian Many-body Systems

Qianqian Chen, Shuai A. Chen, Zheng Zhu

The recent discovery of persistent revivals in the Rydberg-atom quantum simulator has revealed a weakly ergodicity-breaking mechanism dubbed quantum many-body scars, which are a se…

cond-mat.quant-gas2022★ 15 cited

Proposal for asymmetric photoemission and tunneling spectroscopies in quantum simulators of the triangular-lattice Fermi-Hubbard model

Shuai A. Chen, Qianqian Chen, Zheng Zhu

Recent realization of well-controlled quantum simulators of the triangular-lattice Fermi-Hubbard model, including the triangular optical lattices loaded with ultracold Fermions and…

quant-ph2021★ 3 cited

Simulating superluminal propagation of Dirac particles using trapped ions

Qianqian Chen, Yaoming Chu, Jianming Cai

Simulating quantum phenomena in extreme spacetimes in the laboratory represents a powerful approach to explore fundamental physics in the interplay of quantum field theory and gene…

cond-mat.quant-gas2019★ 9 cited

Topological charge pumping in spin-dependent superlattices with glide symmetry

Qianqian Chen, Jianming Cai, Shaoliang Zhang

Topological charge pumping represents an important quantum phenomenon that shows the fundamental connection to the topological properties of dynamical systems. Here, we introduce a…