75 citations · 349 across the 21 of their papers we have counts for
21 papers
Observation of Inelastic Meson Scattering in a Floquet System using a Digital Quantum Simulator
Ziting Wang, Zi-Yong Ge, Yun-Hao Shi +19
Lattice gauge theories provide a non-perturbative framework for understanding confinement and hadronic physics, but their real-time dynamics remain challenging for classical comput…
Observation and Modulation of the Quantum Mpemba Effect on a Superconducting Quantum Processor
Yueshan Xu, Cai-Ping Fang, Bing-Jie Chen +33
In non-equilibrium quantum systems, the quantum Mpemba effect (QME) emerges as a counterintuitive phenomenon: systems exhibiting greater initial symmetry breaking restore symmetry…
Characterizing Many-body Dynamics with Projected Ensembles on a Superconducting Quantum Processor
Zhiguang Yan, Zi-Yong Ge, Rui Li +3
Quantum simulators offer a new opportunity for the experimental exploration of non-equilibrium quantum many-body dynamics, which have traditionally been characterized through expec…
Identifying Entanglement Phases with Bipartite Projected Ensembles
Zi-Yong Ge, Franco Nori
We introduce bipartite projected ensembles (BPEs) for quantum many-body wave functions, which consist of pure states supported on two local subsystems, with each state associated w…
Effective Field Theories and Finite-temperature Properties of Zero-dimensional Superradiant Quantum Phase Transitions
Zi-Yong Ge, Heng Fan, Franco Nori
The existence of zero-dimensional superradiant quantum phase transitions seems inconsistent with conventional statistical physics. This work clarifies this apparent inconsistency.…
Nonmesonic Quantum Many-Body Scars in a 1D Lattice Gauge Theory
Zi-Yong Ge, Yu-Ran Zhang, Franco Nori
We investigate the meson excitations (particle-antiparticle bound states) in quantum many-body scars of a 1D lattice gauge theory coupled to a dynamical spin-$\frac{…
Confinement-Induced Enhancement of Superconductivity in a Spin- Fermion Chain Coupled to a Lattice Gauge Field
Zi-Yong Ge, Franco Nori
We investigate a spin- fermion chain minimally coupled to a gauge field. In the sector of the gauge generator , the model reduces to the H…
Multipartite Entanglement in Crossing the Quantum Critical Point
Hao-Yu Sun, Zi-Yong Ge, Heng Fan
We investigate the multipartite entanglement for a slow quantum quench crossing a critical point. We consider the quantum Ising model and the Lipkin-Meshkov-Glick model, which are…
Variational Quantum Computation of Molecular Linear Response Properties on a Superconducting Quantum Processor
Kaixuan Huang, Xiaoxia Cai, Hao Li +12
Simulating response properties of molecules is crucial for interpreting experimental spectroscopies and accelerating materials design. However, it remains a long-standing computati…
Quantum simulation of Hawking radiation and curved spacetime with a superconducting on-chip black hole
Yun-Hao Shi, Run-Qiu Yang, Zhongcheng Xiang +10
Hawking radiation is one of the quantum features of a black hole that can be understood as a quantum tunneling across the event horizon of the black hole, but it is quite difficult…
Observation of Emergent Gauge Invariance in a Superconducting Circuit
Zhan Wang, Zi-Yong Ge, Zhongcheng Xiang +8
Lattice gauge theories (LGTs) are one of the most fundamental subjects in many-body physics, and has recently attracted considerable research interests in quantum simulations. Here…
Probing Operator Spreading via Floquet Engineering in a Superconducting Circuit
S. K. Zhao, Zi-Yong Ge, Zhongcheng Xiang +16
Operator spreading, often characterized by out-of-time-order correlators (OTOCs), is one of the central concepts in quantum many-body physics. However, measuring OTOCs is experimen…
Thermal variational quantum simulation on a superconducting quantum processor
Xue-Yi Guo, Shang-Shu Li, Xiao Xiao +10
Solving finite-temperature properties of quantum many-body systems is generally challenging to classical computers due to their high computational complexities. In this article, we…
Enhanced emission from a single quantum dot in a microdisk at a deterministic diabolical point
Jingnan Yang, Shushu Shi, Xin Xie +12
We report on controllable cavity modes through controlling the backscattering by two identical scatterers. Periodic changes of the backscattering coupling between two degenerate ca…
Quantum Simulation of Lattice Gauge Theories on Superconducting Circuits: Quantum Phase Transition and Quench Dynamics
Zi-Yong Ge, Rui-Zhen Huang, Zi Yang Meng +1
Recently, quantum simulation of low-dimensional lattice gauge theories (LGTs) has attracted many interests, which may improve our understanding of strongly correlated quantum many-…
Observation of Bloch Oscillations and Wannier-Stark Localization on a Superconducting Processor
Xue-Yi Guo, Zi-Yong Ge, Hekang Li +9
The Bloch oscillation (BO) and Wannier-Stark localization (WSL) are fundamental concepts about metal-insulator transitions in condensed matter physics. These phenomena have also be…
Robustness and Independence of the Eigenstates with respect to the Boundary Conditions across a Delocalization-Localization Phase Transition
Zi-Yong Ge, Heng Fan
We focus on the many-body eigenstates across a localization-delocalization phase transition. To characterize the robustness of the eigenstates, we introduce the eigenstate overlaps…
Localization of Rung Pairs in Hard-core Bose-Hubbard Ladder
Shang-Shu Li, Zi-Yong Ge, Heng Fan
Quantum simulation in experiments of many-body systems may bring new phenomena which are not well studied theoretically. Motivated by a recent work of quantum simulation on a super…
Topological band theory for non-Hermitian systems from the Dirac equation
Zi-Yong Ge, Yu-Ran Zhang, Tao Liu +3
We identify and investigate two classes of non-Hermitian systems, i.e., one resulting from Lorentz-symmetry violation (LSV) and the other from a complex mass (CM) with Lorentz inva…
A Universal Quantum Computing Virtual Machine
Qian-Tan Hong, Zi-Yong Ge, Wen Wang +8
A medium-scale quantum computer with full universal quantum computing capability is necessary for various practical aims and testing applications. Here we report a 34-qubit quantum…
Exploring Topological Phase Transition via Quantum Walk in Coherent State Space
Zi-Yong Ge, Heng Fan
The quantum walk is a dynamical protocol which describes the motion of spinful particles on a lattice. Also, it has been demonstrated to be a powerful platform to explore topologic…